Rapair Fail 1969 Packard Bell Astronaut MQ625 Matsushita BW Tube TV

need to get to the bottom of this weird issue
/ shango066

[@billharris6886]

Hey Shango066, I think I see your problem. From the symptoms, it sounds like your horizonal oscillator loops gain is too low. In an oscillator circuit, the loop gain must be above one. The gain is set by capacitors C67 and C68. Try increasing C68 to 0.01 uF, that may solve the problem. You will need to reset the horizontal frequency, as it will drop a bit.

[@TechGorilla1987]

I had one of these TV's in the living room of our house on Oahu, Hawaii in 1981. They used to burn the sugar cane fields behind the house up in the hills. When they did, we got an influx of small field mice. Dad got a CO2 Crossman air pistol. He would plink at the mice when they popped out from behind the TV cabinet - while watching the latest CBS or NBC movie. My sister and I would take turns relocating the formerly animated rodents to the back fence. As I laugh out loud typing this recitation, I only wish it was made up. I could force my sister to corroborate the story with little coercion.

[@zundfolge1432]

My dad used to pick off mice in his closet with the closet door open, till mom put a stop to that, seems mice splatter all over everything wasnt super cool. Country living in an old house!

[@waltschannel7465]

Thats a great story!

[@billdang3953]

@@zundfolge1432 Need to get a few garter snakes or hungry cats.

[@normanerway8174]

My buddy told me the story of a set he had back in the 60's. The Horizontal oscillator would not start. Every time he touched a scope probe to it, it would start up. He finally calculated the capacitive load of the scope probe (a few picofarads) and added the equivalent capacitor to the circuit where he probed it. He used it like that until the set wore out.

[@PeopleAlreadyDidThis]

My dad had a business in the 70s; lots of fluorescent fixtures. We constantly were fixing dead ones, either dead tubes or burned up ballasts. We finally bought one of these TVs and mounted it on top of a stepladder, face down with the back off. We spent many an hour sliding the rig underneath the fluorescent lamps to check the tubes by proximity to the horizontal output. Never again had to question whether it was tubes or ballasts.

[@1marcelfilms]

And how did that work ?

[@nickweiss2327]

See what I would have done if it was me was use a test rig with a preheat start ballast for 40w tubes. this way you just use that since they are the most reliable and indestructible way to test 30-40w t12 as well as 32-40 t9 circleline tubes.

[@hattree]

My grandpa had one of these in his bedroom. He used to soak it in whiskey and breathe the vapors. Then he'd watch Laugh-In

[@One-Crazy-Cat]

I had one those when I was 13 in my room. I watched “deep inside Annie sprinkles” too many times and the sprinkles actually shorted it out!

[@One-Crazy-Cat]

Did I win 🏆

[@rogersmith7396]

Oh I had one of these in my nuclear fall out shelter. Suzane Sommers looked great on it. Played Pakman for hours. Stayed so close to the screen our eyes would hurt from the radiation. I am blind now.

[@crr8297]

This is the exact television we had in our family room, in fact Packard Bell came to our house to photograph it, the duck belonged to my brother, his name was Walter (my brother was Walter, not the duck) we got a Zenith television after my dad got a job.

[@vanadiumV]

advertised : space age circuits inside : all vacuum tube

[@jamesplotkin4674]

Getting back to basics by cleaning the tube sockets and really looking closely at solder joints. Intermittent issues drive me nuts.

[@davemcgaffney9401]

The connectors in tube sockets in Japanese TVs can oxidize just like protection relay contacts in audio products of that era... Spiking the level of volume control would break through the oxidation and the sound would return...

[@clifffiftytwo]

My roommate had this exact model in our dorm room Freshman year in college. He’d buy a week’s worth of hamburgers on Sunday and eat one, microwaved, while we watched Star Trek re-runs at 5pm each day. No one else on our floor had a TV or fridge or microwave so he charged others per use.

[@townhall05446]

"Ooh, look at the little duck..." LOL

[@MilitaryVideoWorks3742]

We had one of those it was in the kitchen of our house. My Father would sit at the table in evenings doing his crossword puzzles watching his favorite tv shows. Thanks for bringing back a great memory.

[@doogie812]

This set may be a candidate for cryo-diagnosis. Start hosing the thing down and see if you can get the oscillator to stop. I have on a couple of occasions found intermittent connections on the flyback causing a loss of secondary voltages. If you were so inclined remove the flyback and scrape away the goo at the terminal punches. You may find a broken wire at this point.

[@poormanselectronicsbench2021]

I was thinking the same thing, if applying some thermal shock, heat or cold, to the components around the oscillator might expose the marginal part that is giving it grief.

[@thomashowe855]

When I was a small kid, back in 1862, I went to the local Home Depot and got one of these. I put it in the laundry room so I could watch the civil war while doing the laundry.

[@mehmeh5471]

No doubt you will be able to do the same for the next one

[@thomashowe855]

@@mehmeh5471 That one I will be putting in the closet. Or maybe the shower? Who knows?

[@mehmeh5471]

@@thomashowe855 So long as its a room in a bunker it might have a chance

[@bigsky1970]

I had one of these TV's years ago, that I had in the bathroom where I watched endless hours of Jerry Springer, MTV, Billy Mays, and Crépe Erase. Great video Shango, as always. Looking forward to your "barn finds analysis" video as well as the annual July 4th EOL video too.

[@barrymontgomery9860]

We had B&W 1960s TV in the den, I remember watching the Munsters, Addams family and cartoons on it! Then my family converted the one car garage into a bigger family room, (because you know, six kids.) We got an RCA Consol TV! 1971ish. That was living! Lol

[@filthylucreonyoutube]

I had one of these TVs in the conservatory. I used to watch infomercials with Miss Scarlet. I had just started applying CrepeErase to Miss Scarlet's décolleté when Colonel Mustard burst in with a candlestick. I ran out through the library.

[@peterbondmusic]

Look forward to the barn finds. Very cool that you and Bob are in touch and you can send that TV to him.

[@robinsattahip2376]

You can tell by the shape of the protrusion in the back for the CRT that it is a Panasonic if you're old enough to remember those days.

[@frazzleface753]

Oh man, we used to have that TV. It was in the basement laundry room, and my Mom hooked it up to an X-ray machine to check each piece of laundry for radioactivity. It would get so hot that she would lug it upstairs to the kitchen to fry eggs on the screen for supper. Then it was a quick wipe down and move to the living room, just in time for Celebrity Squares and Ed Sullivan. Of course none of this would happen on the days my Dad took the TV to work with him, strapped to the car roof and hooked up to the battery so that everyone could enjoy the sight and sound of static on the freeway. Happy Days.

[@bassblom]

before 69 we only rented a tv around xmas. the moonlanding made my dad buy one, a tube BW philips.. we were up all night (europe), watching, my dad had a tapercorder running and was shooting 6x6 pics. I was 13

[@disstevefan1668]

Long time viewer, first time commenter. Love your content. I admire your knowledge, I know nothing about tubes, I was a bench tech for a computer manufacturer in the 80’s LOL Just as a try, when not oscillating, could you try a heat gun, and see if when you heat a component to make it start oscillating, try to track down the bad component that way. Alternatively when it’s running try freeze spray to make it stop oscillating to try to track down the bad component. Also, poking around with a non conductive stick, my favorite was a wooden soup spoon handle end, when oscillating and or not oscillating to make it stop and or start, to try to track down the component. Yes, I know these are unskilled tries, but the unskilled must do what we do. 😊 and yes, I fixed a rear projection screen TV that way once, and even funnier I used crazy glue to stabilize the problem area, and that TV worked for another 10 years and I gave it away and it survived the truck ride to its new owner and continued to work after that. Sometimes you just get lucky.

[@bntrouble31]

I can’t wait to see the barn finds. Sounds interesting.

[@richardbernardo3528]

I had this TV back in 1975. My Aunt Blanche gave it to me for my 9th birthday. It sat on top of a chest in my room and i can remember watching All in the Family on it

[@kpc5]

Love your Videos, Please keep up the Valve work, i am a Full A ham in the UK and understand nothing about valves i am 62 and a bit thick but willing to learn a lot from your videos, i like the AM radio vids.

[@aerofart]

Not a TV Repair Expert here. I think you might consider focusing your efforts on those things that make this set different from your average set. For example, the “Vacation” switch circuits, the low voltage CRT heater, etc. Obviously, you’re a genius when it comes to fixing vintage gear, but maybe it’s become so routine for you that you’re missing something that is not so common in your routine. Enjoy your show every week. Cheers from the inland Empire.

[@cassandrajoiner9933]

I dunno he touched on both those things.

[@incandescentwithrage]

​@@cassandrajoiner9933I think he meant bypass the features and see if it works

[@BrainDamageBBQ]

First principles from an Electrical Engineer who loves old video equipment and has worked as a broadcast video technician. An oscillator is just an amplifier. You can have a PA sound system on the verge of feedback (oscillation) but nothing will happen until some sort of pop or something happens on the microphone and then the whole system will go crazy with feedback. A little scratchy-scratchy tube socket noise starts your tube oscillating - now what is supposed to provide that "pop" into the "microphone" in your horizontal oscillator? I don't know, but I have seen circuits where a signal which appears only when the other tubes have warmed up starts the oscillator - it's usually a capacitor which charges, the current drops off suddenly, and that's the "mic drop" which starts the feedback going and then you have an oscillator. Whatever it is, you're dealing with a cost-reduced simplified circuit which is expecting something else in the set to bang on the "microphone" and get a feedback squeal to happen. That feedback squeal is obviously tuned to 15,750Hz and that's your horizontal oscillator. Your dual diode phase detector might be selenium; it might be leaking the "pop" away before it gets to the grid. But it is likely to be a relatively small capacitor which strangely couples the horizontal oscillator to the audio output tube or something else in the set. If that capacitor is open, no pop, no feedback, the horizontal oscillator remains an amplifier with no signal and nothing to get it feeding back. Cool old TV set, though. I love that thing. It does produce a nice picture! And wow, that load in your car? Want to drive them up here to Ottawa, Canada for me? So many beautiful pieces of our technological history. Thank you for another great video! Your fan, Lawrence Wade BrainDamageBBQ

[@BrainDamageBBQ]

By the way, if that pop is coming from the audio stage, don't worry, the engineers who designed that set knew that speaker won't do over 10kHz at best. Same if they coupled the starter capacitor off a video amplifier or IF amplifier. But somewhere in the schematic, I am willing to bet money you will find a weird connection between the horizontal oscillator and some other circuit where it does not seem like it should be connected. All that would really matter is that "pop" happens and gets the oscillator running before the large heaters and cathodes in the horizontal output circuits are fully warmed.

[@BrainDamageBBQ]

I restored a 1966 Philco, built as cheaply as a Predicta, about 20 years ago. I oversized the replacement filter capacitors because why not? Vertical oscillator would not start, perfect horizontal line across the screen. I thought about first principles of what an oscillator is... swapped in a smaller power supply capacitor and the vertical oscillator started every time. I think it needed a little hum from the power supply to start the vertical oscillator to feed back and start going. I could see the power supply hum on my oscilloscope but not in the picture or hear it in the sound. Cost-reduced circuits.... component values can be quite critical.

[@SpinStar1956]

Without really having access to the schematic and some component values, there are some general (possible) considerations: First, for any oscillator, the amount of feedback necessary to start the oscillator is always more than what is needed to sustain oscillation. So either the amount of feedback is not available, or the biasing of the active elements is off just enough not be able to take advantage of the feedback amount. To me, it is most like a cap that is leaky that is (through the leakage) changing the DC-parameters but through age (and a reduction in capacitance) reducing the feedback... EDIT: Felt the above was a little lacking if not offering a 'plan-of-attack' to try and set-up on the failure. As far as how to attack the situation short of mass-shotgunning of components, the other way is to set up a multi channel oscilloscope in a few key areas of the feedback loop and while it is working, figure out what a good power-up looks like. Then, you could wait for a failure mode, and then do the same thing. As far as a trigger point, there should be a DC-point that repeats itself in the same way regardless of good or bad power-up. What I would look for is a runt-signal in comparison to what a good power up looks like. So, if the oscillator can't get over the 'hump' is is going to just lock itself in a steady-state of conduction...

[@Stoney3K]

That was my first hunch as well, it would also explain the low amplitude on the oscillator as there would be a capacitor somewhere that is loading the circuit down and change the impedance, which would also mean there is too much damping in the circuit for it to start spontaneously. Capacitor gets hot, reforms to some extent and has less leakage -> less damping in circuit and oscillator will go.

[@garp32]

Exactly my thought as well.

[@markderoller7645]

We had one of these in our living room 1973-1976. I watched Six Million Dollar Man, Emergency, Sesame Street, Electric Company and of course Saturday morning cartoons

[@stevencarlson5422]

I think this set deserves to be restored with such a good crt I'd say throw new parts at it and see what happens, but I bet it'll still do the same darn thing anyway, maybe that's why this set was such low hours cause it failed like that early on in its life

[@50shadesofbeige88]

My grandfather had one of these back in the day. I watched Girls Gone Wild and I Love Lucy every friday night.

[@spazcat69]

I Absolutely love your videos, commentary your opinions all of which I agree with, There always on in the background in my workshop i always notice something new every time I re watch them, I myself have taken up collecting and make working again vintage radios and a couple of TVs so far and here in New Zealand said items are harder to come by but are out there and im finding them. I do remember Nanas old BW telly/radio tv unit and the hours spent as kids watching westerns and the 1 or 2 channels we had at the time and still to this day the TV is still there and still looks brand new, I cant remember anything technical about it But I will be going to do a detailed video documenting it and taking off the back, Id say its about a 19" tube with the typical European crt mounting style, from what im aware of its a very rare unique peace- absolutely worth a detailed look video because it would be nice to know more about it in general and it should be in a museum (my house) as it still looks brand new and ive not seen anything similar or close to it

[@helmutheller1538]

I really would love to see you solve this puzzle. That way, we could all learn something new.

[@tonymanzo3766]

My first tv, found in the trash, completely dead took all the tubes out and went to house of a million parts where they had a whole row of tube testers, tested them all, and the needle didn’t move on one, all others tested good, bought a tube and put it in and the set came to life! All repairs should be this easy. Had it till the late 70s when I got hold of a 19” Sony color set, gave the b&w set to a neighbor and he used it for a few more years. This is the story you wanted us to post.

[@sgath92]

We had one of those Parkard Bell TVs at a relative's house. Whenever any of the kids (my generation) was bed bound for a while from a surgery or sickness, the TV would get borrowed and setup in that kid's bedroom with a 80s era VHS player. When I had my tonsils out my mom went to the library and borrowed a stack of VHSs for me to watch, with one of them being the 1985 Wizard of Oz sequel "Return to Oz." For the uninitiated, its basically a horror version of the Wizard of Oz made by Disney where Dorothy gets electro shock in an insane asylum, among other things. When I went back to school nobody believed me when I told them about the movie and I thought it was some kind of strange dream until years later and I happened across someone talking about it on Reddit. "So it does exist!" My classmate's didn't believe me about Johnny Depp's "Dead Man" movie either. Their loss, really.

[@xsc1000]

I would change the 3uF capacitor. Even if it tests good, its running on high impedance, so even small leak can lower the voltage. Without tube in socket you should have the same voltage on plate contact as on B+. The tube is the same except heater like european PCF 82 or PCF 802. They were used in horizontal oscillator in most european TV sets even color ones since 60s till the end of tube era and they were very reliable. Usually triode part act as voltage controlled device changing frequency of oscillator running on pentode part. Because in Europe B+ was high enough without doubler (250-280V) plate resistor was connected to B+ directly, not to the booster voltage. 160V pp was standard output from this oscillator.

[@jsciarri]

Those Matsushita Panasonic purple capacitors from the 70s are well known to be leaky. You can test them and still get good results but at least that specific one should be changed.

[@maxs.3238]

The pcf 82 and 802 are very different tubes except for the pinout

[@xsc1000]

@@maxs.3238 Yes and no. PCF82 was originally used in VHF tuners as oscillator and mixer. But it was also used as horizontal oscillator and triode part as reactance to tune it. PCF 802 was modified for this use only.

[@maxs.3238]

@xsc1000 alright, didn't know that. I was just going by electrical values which I know to be quite different. So they're not exactly interchangeable (although it might even work in some circuits with a realignment, idk)

[@xsc1000]

@@maxs.3238 There were no problem to use PCF 82 instead of PCF 802 in horizontal oscillator.

[@tarstarkusz]

There were similar ideas (to instant on) in jukeboxes of the day. If the filaments were not kept on, half the song could play before the amp came on. Wurlitzer had a system where the filaments were kept glowing at a reduced voltage and could come up to full power by the time the record was placed on the platter by the mech while also saving energy and tube life when nothing was playing.

[@jimmyday9536]

And RockOla would blast the tubes with high heater voltage to get them warmed up fast!

[@tarstarkusz]

@@jimmyday9536 I'm surprised they all didn't just keep them running. These were moneymaking machines and tubes were cheap. Make em a yearly maintenance item or something. Perhaps the electricity consumption justified it. OTOH, they tended to be full of lights which used even more electricity than the tubes.

[@cfd_novotroitsk]

I'm watching this video through my 1957 kwn-49. The picture tube in my set is so tired, that even this almost new set won't look so bright.

[@Amp497]

Shango, I really like to watch these television resurrection and troubleshooting videos, but I lack the equipment and the training to tackle one of these. You have such extensive knowledge of the behaviors of so many models of televisions. I believe the extensive experience plus the equipment makes all the difference.

[@bigalsmallengines]

I can remember seeing a few of these back when I first started working on stuff. I like the outside design of these and they had a fair picture if you had all your electronics in order. Great Set! Cheers! 🍻 -Al

[@bigalsmallengines]

Unless it is a cracked circuit board, I would have no idea why it would do that. Especially if you have already taken care of any loose stuff on the board. ???

[@electronicsvintage]

We had one of those TV's mounted in the back of our Rolls Royce Silver Shadow limousine. As well, we had one in our private Boeing 737 jet. While in Vietnam after the war ended I remember they had a bunch of those TV's in many of the rooms at the Hanoi Hilton.

[@albear972]

Ahhhh the old Packard Bell Astronaut. We had that very same TV and it was in the bathroom in front of the toilet at arm's reach on a shelf unit. My folks picked up that puppy at the May Company store at 8 Th and Broadway, downtown L.A. When my friends used to come over, they said that we were rich for having such a luxury of having a TV in the bathroom.

[@davepike6170]

I have an older Packard Bell 19" Astronaut BW portable, from about 1964. It works well, but needs caps replaced in the vertical circuit. I'll get to that repair, one of these days! The set was given to me about 3 years ago. All plastic cabinet.

[@MsStevo2000]

My great aunt Nelly had on of em sitting on the porch by the fire extinguisher. Woo boy did it run hot. Used to throw quarters at it and watch the screen flicker. She died a long time ago from choking on a brisket but I still remember that old work horse of a TV

[@roderickroderick7216]

When I was a wee boy we had one of these in the den. Oh what a sight. The family all sat together watching the latest episode of the Sullivan show. It was the best of times, it was the worst of times.

[@poormanselectronicsbench2021]

It's NOT a failure, its just your first attempt. I am hoping some "dead horse persistence" will be applied until it submits to proper functionality.

[@JurassicJenkins]

@56:55 - Add a push button to zap the oscillator to the front. Kinda like a gas lighter. Of course I’m being silly. Great video and thanks for sharing. Looking forward to the barn find vids. 💯👊

[@directcurrent5751]

Swarm of Vacuum tubes in OEM boxes! Hubba hubba.

[@bobbyk6585]

I recall that we had one of these sets on one of those wheeled chrome and particle board carts that were used for televisions in the 70s. It was in our living room most of the time but pushed into a bedroom if company was coming over. I remember watching a Muppet movie on it and comparing notes with elementary school classmates who had seen the show on a color set.

[@user-vq1js6lm4f]

i found one on the side of the road when i was a kid.I was just gifted a computer but had no screen. of course it did not work. i took it to the local collage since they had a tv repair class and asked them if they could fix it cheap. the teacher said no but if i came by after school he would teach me how to fix it myself. So for 2 weeks after school he showed me how to test the tubes and test every component till we found the problem and fixed it.

[@garp32]

Well, can't say you didn't try on this one. Only thing I can think of is to check the cap when it's been sitting a few days. They "heal" or reform to some extent.. but it may break down to the extent after discharge to where it has to reform the oxide layer. Definitely not a tube as you've ruled out. That's awesome you hooked Bob A up on the Duo View! Great video - Thanks for the very useful content!

[@johnsampson1096]

Back in the fifties, I had an uncle who would pull the tubes on a faulty set, and head down to the local drug store and use one of their infamous testers. If something showed weak, he would buy a new one, light a cigarette, try the replacement, and would then curse if it didn't fix the problem. Usually it was a horizontal hold sync problem, and we would surrender the chassis for a week at the TV repair shop... Funny how we are all trained to think it's always capacitors............. Another great tutorial, Dan.

[@chriscimino7854]

A long time ago when I got a job as a TV repairman my boss taught me a lot he was a very smart man he used to take a toothbrush and brush the solder connections to find broken solders. I remember certain TVs had special problems that show up once in a day then I have to wait the next day for it to act up but I have only one chance. I had a thought about taking a small window unit air conditioner and mounting it on a roller and installing a small flexible duct on the cold discharge air and use the other end to cool off the TV if you're looking for temperature sensitive failures it saves on expensive freeze spray and you can heat up small areas with a small heat gun or a small butane hot air tip

[@newsnownetherlands5219]

Oooow look at the little duck ! 🤣

[@johnnytacokleinschmidt515]

Probably a carved wooden duck. It's a thing. I hear if you're middle aged or retired and start to carve them you won't be able to stop until physically unable or deceased...

[@cgeorge6786]

I had three of these stacked on top of each other to support my Packard Bell computer. Those were the days.

[@alexinnewwest1860]

I had one of these sets in the chicken coop but the chickens kept racking up the pay preview bill so i took it away and put it in the pig pen. The pigs were fine with over the air TV broadcast

[@kd5byb]

We never had a Packard Bell TV. I do remember having an Admiral black and white set before we had a color Sony in my parent's bedroom and a color Panasonic in the family room. The Sony had a VCR eventually and was a great TV all the years we owned it. The Panasonic was also good, and had a TI-99/4a computer attached. The Admiral was only used on our generator during power failures, as Dad didn't trust power from the generator to not damage the Sony or the Panasonic. Good times.

[@s8wc3]

We had one of these Packerd Bells in the pool table room, a white one though. I think it had cable or something because if you plugged in a phone line you could get XXX on the AOL channel. Even had a built in combination cup holder and ash tray, it would slide out with a motor if you pushed a button! De Luxe! They don't build em like they used to! Features like that are sold extra today.

[@MrModelaer]

"America grew up listening to Packard Bell, and it still does"

[@JerryEricsson]

I picked up one of those at a community auction, the town where we lived had one of those every month and you could find a lot of stuff cheap. We put it in a spare bedroom that I had set up for gaming, we had an Atari 2600 and played Reactor and Demon Attack mostly on the unit. Our niece came and lived with us over the summer months and cared for our children who were in the lower grades in school at the time, this was in the early 1980's. The TV worked great for gaming and my niece still talks about playing Demon Attack against me on the set back then. I was a cop on the PD so had days where I had little to do but sit in the game room and play Demon Attack...

[@mehmeh5471]

We had one of those TVs we watched gay pride parades and drag queen story hours. Those were the days.

[@Daniel_cheems]

Shango is the man! I wish I knew what was wrong with that circuit...

[@airplaneengine]

We had one of those TVs. It sat in the basement and us kids would hang out down there mostly listening to records with the TV always turned on in the corner but with the volume turned all the way down because it buzzed.

[@THEtechknight]

I currently have 2 Packard Bell TVs, i just uploaded the start of a video series on one of the two sets. Came from Frank at Boiling Springs SC cleanout in 2021 right before they demolished the building, full of TVs.

[@F40PH-2CAT]

My grandmother had a Sears set that looked a LOT like this.

[@Valvulo]

These Styroflex (metalized polyester) capacitors may develop internal intermmitences sometimes, specially when exposed to musty or damp environments. If you wiggle the capacitor, resolder its terminals or even put a voltage across it, you can make it work, but after a while it will start to fail again. These has usually quite precision values too, so any small drift may affect the circuit. I already ran across some very sketchy symptoms caused by these!

[@andygozzo72]

yep i've had a few issues with those 'suflex' caps, i think the aluminium foil oxidised causing poor contact to the leadout wires, as theyre not usually sealed on the ends, though i do have a few that are blobbed with epoxy on the ends

[@user-ym6wr1im7j]

I used to watch one of these with retrochad on the school bus

[@user-ym6wr1im7j]

We watched macgyver, Rockford files and a little Quincy.

[@vintageradios7790]

Not too many of these Packard Bell Panasonic sets made it to the East Coast with the Packard Bell name. Now when I worked in the TV repair shop back in the 70s and the Panasonic versions of these that rarely came in I remember the vegetable cake he would actually replace the oscillator tube the horizontal output tube the double diodes in the oscillator section if my memory serves me correct he replaced a few capacitors in the oscillator section all as preventative maintenance. If I knew the exact cause I would be more than happy to share it but unfortunately from what the text in the repair shop would do change what I said and that seemed to have fixed the problem for the customer. Also as a general rule with any television that came into the repair shop with horizontal or high voltage problems automatically the ocellated to was replaced along with the damper and the horizontal output regardless of condition of the tubes. And the color TVs that came in for service with high-voltage problems all of the tubes were replaced regardless of condition.

[@raidensama1511]

“…brought to you by EEV Reviews”. Dave would be proud.

[@SierraJohn]

We had a '66 Packard Bell 25-inch console with four speakers--it had incredible sound. As for the picture, all I can say is fortunately we had a Teledyne Packard Bell monthly service contract. Nearly every month their guy was out to the house to tweek something or other.

[@shawnstthomas4811]

I picked up what I believed to be in 1968 1969 Packard Bell combo color TV from a consignment store up here in Orangevale California back in 1991 or 92. The lady that ran the store gave it to me for 10 bucks as it did not work . I believe I remember the channel light coming on but that was it. My dad thought I was crazy for my love affair with vintage televisions. Me him and another Burly guy loaded this thing up in the back of his old pickup truck and brought it home. This is the first repair or attempted repair I ever did after my first color tube television that I wield from across the street when I was a kid from a neighbor who didn't want anymore. It was an old CTC 38 RCA. Anyway, back to the Packard Bell, when I got it home and inside the living room I took the back off and noticed a pungent odor. Well the fly back was melted and at the time I didn't know what to do so ended up letting it sit in the garage until my dad got fed up and I'm loaded up in the truck and hauled it to the county dump. Back then, yes, you could do that stuff.

[@contrapezist]

Had one on the roll-about stand so we could watch Jackie Gleason while we eat.

[@computeraidedworld1148]

Oh we had one of those TVs, it was in our living room. My father had this really elaborate pulley system hooked to the channel selector and another on the volume. Ran up the wall right down to his chair on a large wooden board.

[@zundfolge1432]

beer, check, shango check, time to watch, check. Just finished binge watching shango EOL'S. fAVORITE WAS THE FORD RANGER EOLS LOL

[@MrBillmcminn]

My thought is that’s it’s socket that the oscillator tube is plugged into. When the tube is cold it oscillator tube doesn’t start, but then only after the set warms up and the tube is jiggled the it starts. A pin or pins on the tube just don’t make good contact with the contacts in the socket until the set warms up.

[@eigos]

Shango says, "beautiful picture"... but I'm sitting here, thinking "beautiful sound...", lol The (I'm guessing mono) speaker slaps excellently on MTV, sheesh!

[@tommybewick]

We had one of those in the downstairs of our split level house in the '70s and I used to watch the Brady bunch on it everyday after school and pretend I was one of the Brady bunch kids.

[@radio-ged4626]

Oscillators are weird beasts. Many things can stop them running. Some will behave at lower frequencies and stop on higher or the other way round. When you've changed all the components around the valve or tested them and they all seem ok. Try a valve from a known good set, just to eliminate the "I've tried the valve already" syndrome. The 120v p-p output maybe a clue, check the positive feedback circuit if replacing the oscillator valve again doesn't improve things. So much stuff is interactive in these circuits, sometimes just having a working set to swap parts with is the only way forward. Good luck. Enjoyed watching.

[@johnathanasiou9284]

Anytime I've had issues like this it's usually a temperature sensitive component or liquid spilt in the chassis & its corroded a connecting wire internally which is discovered by wigging wires or heat/freeze. Might have to hit it with a few cans of freeze spray spritzer shlamotwerkulated when the oscillator starts & heat gun to reveal the intermittent far quicker & also keep an eye on the B+ at startup. One time when repairing industrial monitors for Rockwell back in the day I had something left field & turned out to the oscillator coil because they had cracked the ferrite or hairline cracks on the PCB which only revealed themselves under a light when I slightly flexed the PCB caused by overzealous percussive "maintenance" by the customer. Definitely re-do those cold solder joints where the fuse it as they look so dodgy that it makes Sorin seem by the book doing milspec soldering. Those cylindrical axial silver coloured caps are likely old school low value polystyrene capacitors & they were everywhere in the 1970s/80s when I was a kid hobbyist. Great new scope tools. Can't wait to see the continuation & the new barn finds (bit of sanding & varnish would do wonders) which look very interesting & whether it passes the ultimate crepe erase test!

[@iRepairElectronics]

Very interesting video Shangoo. I never trust those carbon-based resistors they can have problems susceptible to moisture heat, cold I would put some nice ceramics in the immediate area. I also do not like those plastic polystyrene caps.

[@russellhltn1396]

And the heat of a soldering iron might give a temporary fix.

[@jasonthewiczman5442]

My friend Ben owned a packardbell in the livingroom, I grew up,with a TV repairman, The Tube glow I remember, repair on sets,

[@brotherbrian5625]

I had one of these in the bedroom that did the same thing and BANG! Right on the top. Problem fixed

[@vhfgamer]

Oh yeah! I had one of those TVs in the late 1990s! It was in my bedroom, and we found it sitting by a dumpster near my sister's apartment building. It was my first childhood TV, and I watched Pokemon and Stargate SG1 on it!

[@redneckbryon]

My parents had one, I was born 85 and they had it to around 1989-1991 or so. I remember when they brought it to the dump, they were throwing rocks at the CRT trying to break it. We had a colour TV, but it was actually in the master bedroom.

[@olradguy]

Very common for tuner shields to be left off by lazy techs, I never did that always griped me, along with missing GE service info.

[@sf-dn8rh]

We had one as well, was a us navy rental, used in living room while a sears TV was being repaired.

[@audubon5425]

We used one of these to illuminate the fountain in the courtyard when I was a child.

[@WalterKnox]

I had one of those TVs. It was in my "adult video viewing room". I viewed adult videos in glorious black and white. It was a great set. I kept it until my Grandmother got a new Triniturd and then I got her old Zenith system 3 corner console for my "adult room"

[@ShadowsOnTheScreen]

We had one of those in our upstairs tv room. We booked an early Sears pong game up to it. Lasted a long time.

[@scottbrady7499]

0:20:00 Shango: "the complete lack of mice and/or rat feces, tobacco smoke glaze and Compton Chinese Rabbit hair" seems to indicate it wuz ever used

[@IDPhotoMan]

I had one of those in the shower. Watched Psycho over and over and over.

[@dontknowbrian]

Oh we had one of those TV’s in every room in our palace including the camel stables!

[@jasonthewiczman5442]

Vintage Sets. A Time You brought a TV it lasted

[@frankowalker4662]

We had one of these in the Snooker Room to watch snooker on. We were going to get one for the Billiards Room, but billiards was not televised back then.

[@groover5524]

Many UK sets that used polystyrene capacitors and that valve ( tube ) PCF 802 triode pentode as the line oscillator were notorious for strange random faults . The only cure was to replace the caps .

[@michvod]

Yeah also here in continental Europe... styroflex caps were perfect until they weren't :)

[@rolandkeith5322]

With my headphones on the audio of this tv seems awesome, strong bottom end coming out of the speaker is coming through my Beats Studio's. I had one of these tv's once in one of my dreams ....lol

[@Parkhill57]

At Keesler AFB in Biloxi, MS (late 60's) we had an FPS-6 radar (4 MW) that had an azimuth blanker, but inevitably some joker would shut off the blanker and light up the barracks at night, as all the fluorescent lights would light up.

[@FieldMarshalFeels]

We had one of those TVs back in vietnam. It was in our headquarters tent and we watched Breaking Bad on it. Good times.

[@frankowalker4662]

Looking forward to the barn find assement video.