Magnavox Astrosonic Console Stereo Repair

[@ArlenMoulton2]

You set the category as comedy, Shango you're a genius!

[@rugrataudio]

Best troubleshooting & repair videos of all the inter webs. Right here

[@tough213]

i would not change the way you are you are a great guy a fun guy to watch and a very smart talented and helpful guy and make it easy for people to be able to figure out how things work and how things are made and how you diagnose and repair various electronics and i really enjoy your road trips and your finds and keep up the great work and be safe jon

[@spencerbergquist781]

Just started watching you Shango. Great educational adventure. Was an old techie, used to work on TV's . All that terrible old stuff.

[@markmarkofkane8167]

I found this very interesting. He supplied the information, you investigated everything, and solved the puzzle. A detective show for electronics!!!

[@radiotvphononut]

Out of all the Magnavox consoles that I've worked on, I've never had an audio output transistor fail and have only seen one RF amp transistor become intermittent (germanium). The transistors generally hold up well in these.

[@clifffton]

That series had problems when the RF transistors did fail. By 75 they became fairly unavailable. They were built like tanks.

[@larryshaver3568]

@@clifffton The Astro-Sonic line? i think that ended in 1972

[@squirrelavengerr31]

I've gone through 10+ astrosonic repair videos - by far the best one. Informative/hilarious/enaging. Huzzah!

[@dave1135]

28:00, hall and Oates out of touch from 1985's big bam boom album and tour. Am a big fan and saw this tour in concert. Also just before that was manneater, your local deejays like having hall and Oates in rotation.

[@AstroSonic1967]

Eight years ago I did a recap of my 1966 Magnavox Astrosonic 100. Has separate receiver power amp chassis. A lot of caps to replace. Glad it used pc boards. Earlier models used point to point wiring. The filter cap under chassis for the power suplply had a chunk of plastic missing from it. Once recapped it sounded as good as new.

[@andrewstewart8704]

Shango make happy for our viewing pleasure! Thanks shango for making happy!

[@jsciarri]

I bet Jason Cruz was so excited throughout this video with all those shiny brand new capacitors installed in that stereo.

[@RoughJustice2k18]

Jason Cruz has two favourite things in a video like this; brand new capacitors and radiotvphononut.

[@MrUbiquitousTech]

That's what I was thinking, he probably pissed himself when he heard Shango say he's going to do a recap!

[@danmackintosh6325]

I think the Cruzbot probably went into meltdown, seeing all those caps replaced but the main filter can left there staring at him, silently mocking.

[@siemenstraffic]

It's been a hard day's night, and I've been working like a dog It's been a hard day's night, I should be sleeping like a log But when I get home to KZbin, I find the things Shango he do Watching, will make me feel alright!

[@wrnchhead76]

siemenstraffic 😂😂😂

[@waltschannel7465]

Well done!!

[@xboxmaster555]

Who else here gets excited when he uploads, Ive watched many channels like this and non can keep my interest like he can

[@RoughJustice2k18]

At least it's not a Crosley! Once again, another fine vintage electronic repair job by shango066. I like the way he uses music to test caps as well as or instead of just a meter with a boring "beep" sound.

[@bones007able]

Have the same set.... you are correct the caps are junk, once replaced it comes back to life, also mine had a leaky output transistor causing hiss in background... was lucky to find replacements...plays great now...

[@craignehring]

That was a fun video, had to watch it in two parts, first half on the android Moto the second half on the HP ProBook 6550b. Love old stuff that is brought back from the abyss. Thanks you shango066

[@teacfan1080]

Heeeeere we have a new Shango video! I can attest for Magnavox capacitors. I have a suitcase record player from 1962. All those little black cylinder-type caps were bad or going bad. However, the filter electrolytic was just fine, no hum at all. Also, I read that Mrs. Miller's first album sold 250,000 copies in its first 3 weeks. I wonder how Paul McCartney felt when she did "It's a Hard Day's Night"!

[@alanmaier]

I am not a fan of shooting a capacitor canon at something, but I have learned through my own experience that Astro Sonic chassis just need them. Many times Magnavox used those axial Nichicons on the amplifier board too, and they are always bad to some level. I too rarely have one of those can caps be bad, but the upper end split chassis models often have bad PS caps on the power amp board. That chassis is from an Astro Sonic 15. 15 watts total by the older rating system.

[@alanmaier]

I laughed hard when Bryan was taping caps inside that acoustic phonograph! But on a serious note, I live in Fort Wayne Indiana where Magnavox Astro Sonics are bountiful and in beautiful cosmetic condition, but often were retired due to the stereo failing. I buy them as a collector and restore them. My Astro Sonic 15 had the same issue as this one.. was retired and placed in the dining room as a hutch. Cabinet was too nice to junk. I bought it at the family estate sale. This is the only Astro Sonic label console I have come across that did not have aluminum horns up front. If it did not say "Astro Sonic" on the bezel, I would suspect it was from the lower Magna Sonic line.

[@isoguy.]

Thank you for sharing this awsome video with us. I cant understand why you dont have a hundreds of thousands of subscribers. If I were in a room with an explosive device and had to nominate a person to cut either the red or blue wire to save the world you would be my go to engineer to make that choice. Awsome.

[@wrnchhead76]

ISO Guy lmao 100% agreed mate!

[@brentwegher2014]

Universal fact -- you ALWAYS cut the RED wire!!!!!!!!!!!!

[@DrewskisBrews]

Now THAT would be a cant-miss EOL!

[@isoguy.]

@@brentwegher2014 Err! Umm, unless its the blue one, I think ----Boom--- Guess you were right.

[@Pyridox]

Nice repair Shango. My mom & dad had a Magnavox FM/AM / Phono console in the 70's thru the 80's, similar looking to the one you worked on in the video. Hey that capacitor testing rig is a good idea, it's crude but it works. Good night Miss Miller. LoL

[@brentwegher2014]

Thumbs up for good work. Similar observations on large metal can filter caps and Japanese TO1 cased Germaniums from 50s and 60s era. Dome top transistors get weird, but luckily they were common for only a few years. I seem to find more dirty switch contacts, cracked circuit board traces around tuning caps and volume controls, cracked output tube sockets. Carbon composition resistors can get constipated, also overheating, leading to cracks causing opens. Intermittents are the worst. I don't have the patience to rework IF cans, unless they are the earlier large ones.

[@RuneTheFirst]

Those axial Nichicons are real early ones and identifiable by their color. Later, (1968+) they made outstanding ones. They were identifiable by being light blue in color (later (post 1978) they were improved again and became dark blue in color. These are very dependable and rarely give trouble. ALL early Japanese electrolytics are probably suspect, especially Sanyo plastic-cased (1960-1968) ones.

[@pcno2832]

10:55 I've always thought balance controls were over-rated; probably useful in the early days of stereo simulcasts, or maybe if the speakers were at different ends of the room, but harder to justify in a console or a boombox. And, I'd much rather have only one volume control than separate ones for L and R.

[@DrWatts-bi1jv]

Another excellent video Shango. Many thanks from the UK 🇬🇧 Love the fly that's trying to make it in show business in the last segment too :)

[@focus82grothm.84]

I can say it's good rich sound of that radio, on my Yamaha stereo. Great diagnosis and repair. 73de from ham radio operator LA5IRA in Norway.

[@ralphups7782]

Any one who does electronics and have a cat or dog that helps chill factors,in my books is a fantastic human being indeed.

[@tpcdude]

The lead length is due to a production line machine which trimmed leads by placing the board on a fixture with a spacer over a rotating sharp blade kinda like a rotary lawn mower blade...

[@wadehicks9270]

Lotta good oldies songs you played... Very cool old school...

[@Musicradio77Network]

wade hicks Too bad "Disco Saturday Night" wasn't on there, but all they played is music in this video, along with some Mrs. Miller cover songs. This past weekend I listened to "Disco Saturday Night" from 10 PM until 3 AM eastern time, where I can get my groove on right up until the wee hours.

[@morrismckinnon6047]

I had the same problems with some stereos I wanted a few years ago. No audio from the left or right channel. I threw them all out as everyone I took them to didn't know what they were doing. Had no choice but to buy a modern plastic stereo with awful tinny sound. Keep up the good work, electrical repairs are all but gone in the UK.

[@ned8880]

Mrs Miller's voice is what caused those caps to fail. Being exposed to that noise is deadly.

[@rolfsinkgraven]

Very interesting video, another lesson learned thnx haven't heard ms miller in a few centuries lol

[@MsCori76]

Thankyou shango for publishing this new video on my 42nd birthday today......Happy birthday to me......xxoo

[@VintageElectronicsGeek]

Happy Birthday to you! Hope its spectacular! :) ~Jack, VEG

[@MsCori76]

Vintage Electronics Geek - Thankyou, so far it’s been a quiet one with my kids.

[@craignehring]

Hey H A P P Y B I R T H D A Y To YOU

[@danilorainone406]

hbd,,the kids were let loose in the kitchen making a cake?,,,,shango gets to lick the bowls to ehh? jolly good

[@Synthematix]

Christ ill be 45 in 3 days. damn were all getting old, this is no fun.

[@johnstark5324]

My Teac A 1500 from 1966 had one bad Germanium transistor. ONE! Of course it was the most difficult to find! I did find a replacement NOS and it came with 19 of the same. I also purchased all NOS for the rest, just in case! But all the electrolytic caps were going bad.

[@VegasCyclingFreak]

46:00 At least this person knew how to pack it well. In the 80s, when I was in shipping/receiving, the UPS guidelines said that you needed to pack your package so it could withstand a six foot fall onto concrete. I've never went wrong using that.

[@karlar8648]

Loved these back in the day!

[@brianmcgowan7394]

You have some of the most entertaining videos on things I am interested in! Pleases keep making them!

[@TechneMoira]

He knows how to schmooz his xomments. I wish I had the same facimility with words. Mrs Miller should have gotten The Nobel prize for Peace... at least that's what my neighbour thinks whenever I turn the volume down... Very entertaining and interesting video. Thanks a lot for showing :)

[@larryshaver3568]

stereo fm separation is absolutely amazing

[@larryshaver3568]

Wow the stereo fm separation is awesome

[@FoxeemaTV]

i wish i was closer to you i have my dads 1966 or 67 eletihome console stereo got used a lot and need redone but i am in ontario canada . your videos are great

[@7c3c72602f7054696b]

Oh boy, here we go. Sounds pretty good though. Cause of you I'm picking up a zweenith to h500, looking forward to it.

[@charlesmoore3321]

Introduced to Zeppelin in the late sixties by way of a Magnavox Astrosonic console. I'm still impressed.

[@danilorainone406]

rollerblading down huntington pier,gadzooks,same music,different genre every 50 ft,,,, hooyah

[@dadsvespa]

I was given an "Astro Sonic Stereo Theater" in the 80's by my neighbor. It was HUGE ! lol. Like 8 feet wide.The TV didn't work. I sent it out...paid over 200 bucks..(in the eighties that was a lot) !Got it home. The TV came on..but everthing was green !! Adjusting it did not help ..I got ripped. Anyway the radio sounded great with its large woofers. I threw it away a year later.lol.

[@MrUbiquitousTech]

Always learn from your channel Shango, and get some laughs. Thanks for that!

[@rosieokelly]

First! Rebuilding that same unit right now! Love these units!

[@williammoore2982]

ShangoO66, I appreciate the electronic humor,wish you were nearby to solve some of my old Zenith Transoceanic mysteries.

[@sihartobing9570]

Lovely Days Busy Electronic Expert ...... Bravo.

[@dave_yeg8596]

You fixy very goodly Shango Sin-San.

[@williammoore2982]

ShangoO66, You remind me of high school electronics teacher talking about those cheap Japanese capacitors. He was old school concerning electronics, vacuum tubes and was not fond of transistors.

[@Rev22-21]

Nothing like a true stereo sound.

[@kareno8634]

Those leads remind me of a Brier Patch. That Mrs. Miller still Jazzing up the tunes! Thrilling, a Box & [big] 10" Knife - That's logical. Really need more that actually Think (instead of ploy for $$$) when doing repairs. Ya done Good!

[@Amp497]

Mrs. Miller, dreamy chick! Like your practical show.

[@rdsledge]

Thank you! Your videos are fun and Entertaining. Thank for turning me on to Miss Miller, I think.

[@NorthRiverTV]

I never noticed this, but Shango at 2X speed sounds just like Ben Shapiro. Also, I end every one of my music show broadcasts with a selection from Mrs. Miller. The kids love it. That Maggie unit has a hot AM tuner too... i heard several San Diego stations nice n loud in the bandscan. Nice job bringing it back.

[@jasonb4370]

Paint pens are awesome too that way you can mark it along with taking in the photo

[@saarike]

Nice repair and radio!

[@billmcdonald2436]

On the no AM complaint, in my area there is only one AM channel left. Soon there won’t be any within receiving distance here. Maybe in his location all of them have already been taken off the air.

[@luisantoniomarrega1120]

Interessante, o equipamento parece novo! Rio de Janeiro Brasil

[@dstoll7958]

I love watching cool videos heeeerree.

[@luvradios]

Great job as always. The Ms. Miller is perfect in your videos but doubtful I will be adding it to my playlist anytime soon lol.

[@KLM817]

Wow. I have almost this exact chassis, only mine is a 1966 model. I have started to replace some of the caps. Mine had a muffled left channel and that ended up being the caps in the speaker crossover.

[@matthiasmartin1975]

And shango - fix the parallax setting on your FLIR thingy. There should be a slider somewhere. Cool video btw. I learned about these quasi-complementary power stages in school in the 90s but never saw any in the wild.

[@wyokaiju992]

6:16 Pine Hollow Auto Diagnostics got you covered on that Shango.

[@brianleeper5737]

I think Shango may have been referring to this video: kzbin.info/www/bejne/mIm4p5-Mhbx5aKs

[@franklynpolster8949]

You kid about driving up the value of Mrs Miller... but you will. BTW Nice magnavox, 10 speaker, nice microgroov changer.

[@johnnytacokleinschmidt515]

19:10 "I've Got A Tiger By The Tail." Lol, I would only think of Buck Owens. Mrs. Miller is..... God Bless!

[@jazbell7]

It's a tried and true Maggotbox.Top of the line with flies.

[@F9FCJ429]

Mrs. Miller just sent every cat in the house under the bed. 🙀😹

[@ocamet2926]

Thanks for the great idea for checking caps. Checked each one on my Mgnavox Astrosonic, each checked good with the method. Problem is neither Am not FM work, Phono sounds great however. Any suggestions to isolate the problem.

[@andygozzo72]

the only germaniums that seem to give trouble are those AF11x or OC170/OC171 types or similar what can develop tin whiskers internally, i have had 2 AC12x types develop whiskers as well, but 2 in 30 ish years of tinkering with old stuff isnt bad! had many more AF types bad, most have cleared when blasted with a high current pulse!

[@jasonmitchell8733]

Great video Shango, thanks!

[@Stoneforth]

thanks for introducing me to mrs miller

[@pcno2832]

17:00 Who backed up Mrs. Miller? Did Capitol use Wrecking Crew types? The instrumentation is usually as good as she is bad.

[@RuneTheFirst]

Did radiotvphononut send you that Mrs Miller recording? He inflicted it on us a couple weeks ago. Yes, she was around for a few years as a novelty act, like Tiny Tim.

[@vicmabus1532]

Gave me a headache...

[@macgvrs]

I am glad to see new videos coming from you. Always interesting. Your video seems to be out of order. The unboxing came last, which unless we are living in an alternate time continuum, should have come first. Just saying. Please, please please no more Mrs. Miller. Sounds like bad opera meets rock.

[@dadsvespa]

Great video Shango !

[@Madness832]

Around, 10:30, where you moved the cap lead, there are a few very-low-value resistors in the shot. If I did the math right, a 6.8-ohm & two 0.47-ohm. What is the purpose of those (say, vs. just using a jumper)?

[@f.k.burnham8491]

Off the top of my head, those 4.7 ohm are the emitter resistors for the outputs. I can't remember what the 6.8 ohm are, but likely the same. its been almost a decade since I worked on those.

[@spresc2180]

Very well done video. I think you will have a happy customer and he will find the AM interference source on his end. Hall & Oates....cheesy?? Sacrilege!! But the old lady certified entertainer screeching.....THATS cheesy.

[@reginaldlawrence412]

Great video shango.

[@sweettoof9002]

Shango that music is awesome. Sounds like Ethel Merman on LSD.

[@garp32]

Excellent video sir! The capacitor critics are appeased.. lol. Keep ' em conning =)

[@millercroger]

Shango, I think I would have hit the AM converter with a little freeze spray. You know how those germaniums can become thermally intermittent. Just a suggestion.

[@alancordwell9759]

these videos really are an education!!

[@Synthematix]

This is a shagolicious, super duper, fartbox, twisted metal, squibley doibler, one hour special...

[@vintageradioman]

How much do you charge for a repair like this?

[@richardweinberger2756]

Shango - I have seen a few other requests, so can you kindly explain your aural capacitor test rig? It is quick and non-scary in use, as well as entertaining. Would a small transistor radio perform that function with the cap leads spliced into the speaker lead? Thanks from us hobbyists out in LaLa land.

[@johnsampson1096]

With Mrs Miller shouting through the audio, it probably finished those marginal caps! People condemn germanium, but they sound almost like tube audio with a small signal required to cross the .1 volt bias threshold. Enjoyable repair....

[@martinhightower9801]

Damn that thing sounds great.

[@larryshaver3568]

do you work on changers?

[@TheGuitologist]

I want to take LSD and listen to Mrs. Miller. Wait, no I don't.

[@jameslucas6589]

The Guitologist Is that the Mrs Miller who patronized every TV show possible in the late 60s/70s? I think she was in NY.

[@benwinter2420]

Yeah . . something upstairs would let the smoke out for sure .

[@cardboardboxification]

The Guitologist you would have to takeLSD to be able to listen to Mrs Miller...

[@StinkFingerr]

That would be a Bad Trip.

[@cardboardboxification]

StinkFingerr you haven’t heard anything until you heard “ wing sing dancing queen “ kzbin.info/www/bejne/jqKliKmjnbhgd7s

[@Periskop1]

New fan right HERE :-)

[@deltadigger2833]

Could you do video on rebuilding large transformer? Happen to have one from jukebox that trips power supply. Thanks

[@larryshaver3568]

Is AFC also a type of automatic gain control?

[@Zirok1982]

Would those caps reform if you let Mrs. Miller play through them?

[@nealwright5630]

I have a 1969 Astro Sonic and I got the service manual including the schematics printed out. It has the common issue where one side of output doesn't work. There is a blown resistor that I can see, but I don't know where to go to get the best resistors/capacitors/transistors. I looked on your community page and didn't see anything, but I hear you talk about getting the best... where can I get them?

[@zulumax1]

Did you find your parts? I have a 1965 model that I repaired and it works great now.

[@XMguy]

I have a similar series astrosonic. It's a nice set. I see you're channeling RetroChad again! Lol

[@alphabeets]

Great video. Love your work.

[@jubemarsh2202]

Freaking love it! 😂 You're hilarious brother!

[@lacrossewieas2411]

What should I use as a crossover capacitor in a speaker? I would need to cut anything below 2k

[@letsgotothevideotape]

Mrs. Miller's version of Yellow Submarine almost works.