EEVblog

[@hi-friaudioman]

Viewers in florida are indeed called floridians Dave! You got it.

[@jameshunt2141]

Dave, USB's wear out quickly and 3.5mm jack plugs do not , jacks also rotate

[@anotherdayisforever]

Mailbag really is my favorite segment.

[@russellhltn1396]

41:05 - looks like my very first meter. Good unit. It served me well.

[@PapasDino]

The TTC CT-1001 VOM was my first meter back in 1969...mom bought it for me at a real life electronics/surplus store in San Francisco where the surplus stores lined up along Market Street. Still have it to remind me of the good old days!

[@peterg.8245]

Violated the first rule of eevblog, don't turn it on, tear it apart! Paging Mr Carlson to replace those wax caps!!!

[@tomjones9137]

'Floridians' is correct! And, it looks better with the lighting, more professional...keep it up!

[@tony69peaches]

David- the San Jose Light tower was at the intersection of Market and Santa Clara streets but came down in a storm at 11:55 am December 3 in 1915. There is a 1/2 scale replica at the San Jose History Park today and an effort to rebuild a modern replica of the original at the same location is underway.

[@SianaGearz]

Ooooh i'm loving that ST PSD8XXFX in that labelling machine! Seems so immensely useful!

[@gip-gipsr.1524]

See Mr Carlson's Lab's video on VTVMs if you wanna keep it. If not I may/may not be willing to pay shipping to the US.

[@budude2]

Thought the same thing!

[@LumaControl]

Charles Thompson i

[@gip-gipsr.1524]

PC GUY 1241 ya mighta hit the enter button on accident

[@williamsquires3070]

Let's have a 2-minute restore here. Replace the old selenium rectifier with some 1N4007's, replace the wax-paper caps and the (no doubt leaky) electrolytic cap, and I'll bet that old VTVM will work like new! Nothing like some nice vacuum bulbs - none of this IC rubbish! :)

[@douro20]

The VTVM is from the 1940s. The battery will be for resistance measurement. Precision Apparatus Company made some very nice equipment.

[@grantrennie]

On the aluminium can cashing there used to be in Australia and the UK, I had a place in Boston Massachusetts for a while and when I was over there I found that all cans and bottles had a deposit on them and it was almost impossible to cash them in anywhere, nobody wanted them but the state/county/council would happily take them for free in the recycling bins that were everywhere.. They are trying to bring in compulsory deposits in the UK and I can see it going the same way, nowhere to get back the deposits, just an extra tax with the state collecting the cans/bottles to sell on for recycling

[@Herby-1620]

On the VTVM the battery is used for the ohms scale. The connector was commonly a microphone (unbalanced) connector. If I were "updating" the device I'd make it a BNC connector. Typically the input impedance was 1 meg ohm, and the "probe" added another 9 megs to make it a total of 10 megs.

[@george8bitsworth]

On the VTVM the D cell that would be in battery holder was to provide a voltage for the ohmmeter--all VTVMs had them. There was no way it would power the whole meter.

[@DigitalCoffee-OG]

Finally, a new mailbag!!! Thanks Dave!!

[@JerryWalker001]

I still use a VTVM for old valve (tube) TV and radio restoration. You can use a modified N type connector for the input and the battery is just for ohms, it will not power the meter. They are really good for high impedance valve work.

[@ElmerFuddGun]

4:57 - converting 1440x1080 to 1920x1080 seems to be the biggest quality issue. Up until you mentioned the lighting *something* seemed off with my picture but it wasn't the lighting. Oh well... bet you will be double checking the recording mode next time! ;-P

[@Screamingtut]

David, that's Glendale, NYC. it's in Queen one of the 5 boroughs. I used to live in Glendale back in the early 70's.

[@phamuc11735]

Long Island ... Home what was Grumman....Lunar LEM...F-14

[@dougmcartin3881]

The LI stands for Long Island NY. Glendale is in Queens, one of the five boroughs of New York City. The connector is an Amphenol type used back in the 50's and 60's. Many microphones used them. The meter needs a D battery for the ohms function to operate.

[@joemmac]

L.I. is Long Island. That's the large island at the bottom of NY State that part of NYC is on (Brooklyn and Queens) as well as two other counties (Nassau and Suffolk).

[@dhpbear2]

8:45 - the battery is used in the Ohms ranges.

[@sjrr124]

The original San Jose light tower that was built in 1881 collapsed in 1915. There is a half size replica of the light tower at History San Jose's History Park.

[@ManuKrishnanmagz]

Waiting for the mail bag like for ever.. thanks Dave!

[@cdw4255]

The multimeter connector appears to be an Amphenol 75-mc1 series connector,

[@linagee]

Looked a bit like a garden hose connector with a center pin.

[@russellhltn1396]

I've seen it before - I think it was used as a microphone connector - a quick Google confirms my memory and gives me a name: SwitchCraft 2501F.

[@cdw4255]

It could also be used with a Heathkit 432-1. But yes, it was used as a mic connector.

[@n2n8sda]

Yes thats correct.. Amphenol "microphone" connector.

[@KennethScharf]

What did they call the VTVM in the UK and in OZ? Valve Volt Meter (VVM)? Anyway the battery was only for the ohmmeter function. I wondered why there were TWO 6AL5's, and then I realized that the second one was for the rectifier function in the power supply. Most VTVM's used a selenium rectifier or a diode in a half wave rectifier. The other 6AL5 was the AC signal rectifier for use on the AC volt meter functions.

[@richardgoebel226]

PACO Model 68 - Dave, replace those old waxie caps! Then check transformer secondary voltages to see if it is burnt out.

[@richfiles]

I own a Friden EC132, which added a square root key. It came out a few months after the 130. Also own an SCM Cogito 240SR, which is a cool old machine. There's some history between the two machines. Stanley Frankel designed the 240SR, and was a mathematician who worked on the Manhattan project. He had been censured over his views on the direction nuclear development should follow. That basically barred him from government work, so he went to Marchant with an idea for an electronic calculator. Marchant (who had either just merged, or was in the process of merging with Smith-Corona... I don't recall) was interested in the idea, but not the risk. They decided it would be better to offer to license the technology to their competitor, Friden. If the product failed to sell, Friden would take the loss, and if it was a success, they could collect royalties... Friden, rather than taking the bait, said they were not interested. Instead, they rushed their own design to market, beating the Cogito by months. Friden's design was huge, clunky, and wasn't all that efficient, design wise. It did introduce RPN, if only for the fact that it made the hardware design simpler. Ultimately, it did work though. The Cogito 240SR had an unusual input method, and an unusual output that could effectively count to infinity, at the expense of discarding least significant digits, and outputting a marker on the display that allowed you to keep track of the number of display overflows, so long as you manually counted the transitions. The Cogito was markedly smaller, and weighed a slightly less. It had a much more compact, narrower design, Had a wider variety of input options (like a grand total mode, and the ability to manually swap the contents of registers). I love collecting old calculators, and those old models from the 1960s are some of my favorite ones!

[@madbstard1]

Would love to see the paste dispenser in action - looks a really cool piece of kit.

[@carlosedwardos]

DAVE ---> L.I. = Long Island also, replace all of the caps and it will work fine! - the tubes are likely OK!

[@Brutaltronics]

We need that super computer cluster Dave!

[@xDevscom_EE]

I love how Dave recently covers more volt-nut topics in vid here and there :D. Thanks dave. Maybe you should make an episode about who are volt-nuts and why they are crazy folks :D.

[@chromabotia]

Great to see a mail bag segment, seem like it's been a while. I don't think that you need a "key" light. Thanks Dave and Hi to Dave jr...

[@PanduPoluan]

Now THAT'S a knife! 😝 Yay Crocodile Dundee! 🙌

[@robertlach2936]

I am not an expert but 1080 looks like 480p... strange.

[@John_Ridley]

Also if you view it soon after it's posted the HD versions won't have been processed yet and it'll fall back to low res versions.

[@awesomeferret]

Robert Lach that's only because he used a bad deinterlace method. 1080i can look as good as 1080p if deinterlaced properly.

[@bborkzilla]

I still use a Heathkit VTVM for radio alignment and other tweaky kind of stuff.

[@petersage5157]

All I can find on that VTVM probe connector is "Amphenol 75 series", but I'm sure it has some other nomenclature. Bueller? ...and the worst part about of the old meter is the PIO caps, but you already have been pointed to Mr. Carlson's Lab, so you know this already.

[@johncundiss9098]

I remember being a kid and my dad saved cans. We had to go through with a magnet to "weed out" the steel cans.

[@gordonwedman3179]

My first multimeter 45 years ago was just like Dave's. Unfortunately my brother and I shorted it out one day and burned up a big chunk of the pcb. The last meter I killed was a Wavetek 27 when I accidentally measured the HV on a CRT. I sent it back to Wavetek and they gave me the newer version for $50. Nice.

[@kewakl8891]

@3:50 making puns without realizing it. "If I ever get the damn thing finished" *FINNISHED - supercluster baged from Finland* @5:40 it brings out the gray in your hair! DOH! Model 68. I almost thought it was a new minion.

[@rocketman221projects]

That solder paste dispenser is interesting. I have never seen one that isn't pneumatic before. I hope you will make a video using it to assemble a board. It seems really bulky compared to the pneumatic one I use.

[@PeterCCamilleri]

I grew up using my Dad's old VTVM. It was a simpler cousin to the one you got. BTW: The battery was to operate the ohms ranges, not the meter as a whole.

[@keithweathersbee1]

why not send it Mr Carson's lab? He would get it working.

[@jasa_m7990]

for sure! I would love to see a colab between these two!

[@ianide2480]

Yes, Floridian is a "thing"

[@michaelhawthorne8696]

At 19:45... the circuit seems to have a short between pins 4 and 5, of U1

[@shanebekker]

Hmmm that is nice solder paste. Low temp melting point and Tin Bismuth Silver so it lasts longer than the ordinary bismuth. Expensive stuff actually. Apparently I beleive IBM used to or still does use the Tin Bismuth version.

[@JWH3]

backlight helped, might want an acoustic baffle in there too, it's echoy

[@leisergeist]

3M is the only drug Dave needs aaaaahhh I need that Silicon Valley book ASAP and the solder paste dispenser would be cool to mount on a CNC machine... Hook into the trigger connection and Bob's your uncle

[@danielsullivan87]

Given that I'm printing up a new multi-attachment holder for my CNC machine, I thought the exact same thing... especially since I'm using it for PCB rapid fabrication.. mill.. drill... solder paste... pick and place - you've almost got your own assembly line right there

[@leisergeist]

Daniel Sullivan Exactly! Brilliant

[@JoelHudson]

Hey Dave, RE: The light tower in San Jose?, it lives on in 1/2 Scale in the San Jose Historical Museum. Cheers!

[@tubical71]

Does that reset IC make you sweat out all your fear? why did you change your shirt after 39:11 you´re wearing that NFB thing.. And also this sudden ending doesn´t make me feel comfortable, neither....running outa Tape, Dave ? ;)

[@michaelhawthorne8696]

Just tried the link to your T shirts and they seem to sell all the shirts but the Triple 5 one.... huh?

[@Jeff121456]

That vtvm connector goes to a probe with a vacuum tube at the tip.

[@DonkeyLearningIT]

That connector on the tube multimeter is so unique, that it might have been used to repair *electric chairs* or something.

[@peepopalaber]

Try to use 3200K on the lights and manually set your camera white balance closer to daylight or possibly the greenish florescent color temperature spectrum of around 4800K. But just for the Face shots. For the Close-Ups it could be too warm (or cold, depends on the shown colors).

[@williamsquires3070]

Interesting bit - if you look at the box from a distance, it looks like it says, "Hextpuder" (maybe it has a micro w/6 cores?) :)

[@for2utube]

I don't think there was "heat-shrink" 40 years ago a lot of components used that transparent lead protector tubing. I used to salvage it when I was a kid.

[@squelchedotter]

So I just tried subtitling this and it's hard af... Dave doesn't end half of his sentences.

[@ortzinator]

What would happen if customs needed to open that wood box?

[@ecofuelbox]

That task maybe to complicated for them. They will probably scratch their heads and let it pass the border "as it" ;)

[@LeskiStation]

In case you were wondering, and by the off chance you see this, Glendale L. I. NY means, Glendale, Long Island, New York. Cheers!!

[@njphilwt]

That's a switchcraft microphone jack. Very common on old test gear.

[@gtb81.]

On that vtvm the caps need to be replaced asap they go real bad over time also that battery is for ohms not anything else, cheers dave! I would love a vtvm, you just can't find any worth working with sadly

[@John_Ridley]

I wouldn't be surprised to find that you have to have a battery in the VTVM *AND* plug it in to mains to use it. The mains to run the filaments.

[@Sloxx701]

I think the battery is just for the Ohms range, at least in my IM-28 VTVM it is. AC/DC ranges seem to work fine without it.

[@piratapan]

I need a new butterknife, where can I buy one like the one you are unboxing with?

[@Yogsoggeth]

I didn't find the link to the shirt on the blog. I kinda want one of those.

[@keithweathersbee1]

P/S, he has a nice site and has a voice you could listen to all day, every day.

[@rjrfletcher2355]

The 555 T-Shirt is brilliant :-)

[@hakemon]

I live in Oviedo FL also, and yep, you said it right! I'm honestly shocked there's another viewer here in my small city.

[@hakemon]

It sure is, I still like it, despite the concrete jungle it's slowly becoming. As long as it keeps the old country vibe, I'll be happy. Shame the original Townhouse was torn down. Finally got to visit the new one, and it wasn't bad, great location next to the trail.

[@hakemon]

I figured it was you. ;) I moved here back in 1998, where things were soooo different. For example the Publix off broadway and Lockwood, didn't even exist back then, that entire plaza wasn't even there. (I live off of MH). I don't work at Seimens, currently actually I'm unemployed, have been for over a year, since my contract with SCPS expired. Been trying to work at home on my own thing---while not doing too well. So I am going to be in the market again for a regular full time job.

[@MaddTheSane]

4:17 Are you talking about an iMac G5?

[@yuppiehi]

Please send that Precision meter to Mr. Carlson's Lab so he can refurb it. He specializes in those point-to-point circuits. All those caps have to be replaced.

[@bonzaihb3432]

+3:52 Dave, now you definitely can/have to get it finnished :-) (pun intended)

[@Hccoh005]

Maybe try to put the color temp of the backlight a bit lower. But probably its no good for those close up shots.

[@weirdscix]

I was going to order one of those T-shirts but it is not showing as an option, I only have Fluxgate Condenser, Negative Feedback and Warranty Void if Not Removed

[@alunroberts1439]

I still use transistor tester to match transistors for Pre amps an class A Amps

[@RobinHilton22367]

Pi Cluster last video was 8 months ago. Still keen on seeing the outcome :)

[@SharpEnuff]

I remember that Friden 130 & 132 trying to develop a pocket calculator broke the company which was defunct by 1965

[@tigerrrdyr]

thats ferrite shielding tape sheet on top on that fit bit :)

[@Mobin92]

Something is weird with the video quality... I'm on 1080p but it kinda looks like good a scaled up 480p version.

[@flatfrog69rr71]

Congrat's on passing your Ham Radio licence- Dave !!!

[@bbreeuwer4577]

No NE555 T-shirts available :(

[@metfan]

what happened to that Altium building you rented?

[@WacKEDmaN]

the extra light is overkill Dave!..it looked fine before!..everything looks a bit washed out now...and looks like you havent been out in the sun in a while! :P

[@EEVblog]

Yeah I know, backlight wasn't it's purpose BTW, just thought I'd try that.

[@pepper669]

EEVblog In case you don't need it, you can send it to me, I'll take it ;).

[@DigitalCoffee-OG]

I agree with WacKEDmaN, its got ya looking a little washed and just a hair out of focus.

[@LouieS-PH]

maybe because he used a cold light. Try using something on the warmer side (Just a little yellow)

[@AniviaS]

I think he just didnt adjust his white balance and exposure correctly to adjust for the increased light.

[@5argetech56]

That tube meter was made in the state of NY Glendale, Long Island. USA.... Not far from where I was born... Nice.

[@PoodlePuncher]

I'm curious about that LED light... what Brand/Model was it?

[@Tuttomenui]

It is not environmentally unfriendly to use wood box for sending mail. Especially that type of plywood. Trees are farmed for that stuff.

[@travis4798]

TC-1 could be Tandy Corporation? It would make sense given the style of the front.

[@AndreyK415]

Everyone, quick, send lots of chocolate to Dave! In a month, he should have enough chocolate to die from.

[@tohopes]

We can turn him into Counselor Troi from Star Trek.

[@sparkplug1018]

Tell me you visited the Saturn V while you were in Florida Dave. If not what did you do here man, look at alligators?

[@markg735]

I take everyone who visits FL to KSC for the Saturn exhibit. It's one of the best things to do here.

[@Ozziepeck11]

Pretty sure the crystal is shorted at 19:47.

[@steve87uk]

Looks like a silk screen line to me? Might be wrong.

[@MrBrax]

Hmm, I think this is the first time I've come across the subscription bug, didn't see this video until now.

[@CrazyCrawlers]

should send that VT/VM to Dr. Carlsons Lab.. He could get that bad boy working and in short order!

[@rob6676]

pop in the background? sounds 3D to me too, lets get the glassses......wooooooooo, sooo coooool lol

[@Spector_NS5_RD]

TBH, if you didn't mention anything about the added light, i wouldn't of even noticed. YAAY!!!!! mailbag-uh-doody time!!

[@thesaurus1523]

L.I., N.Y. is Long Island New York! We used to make the original Swingline 747 here too!

[@PlasmaHH]

They don't make them anymore? Certainly not like those, but look on ebay for transistor testers, they do them in digital, a ripoff from some DIY project, they are really pretty nice because they can identify and measure various things, imho quite nice for the DIY person who is on a budget and has to scavenge things for old parts, or even for repair jobs I occasionally use them to test 3pin devices for which I can't find any info about.

[@egrand1508]

Precision Apparatus merged with B&K in the 60's to become B&K Precision.

[@monchiabbad]

You could have used the tip of the knife to unscrew those screws..

[@alfhammond5355]

Quality at 1080p literally looks like a bad 720p.. what's happened?

[@Gadgetman1989]

Reminds me of what my grandfather left me after his term for McDonnell

[@linagee]

45:25 I wish all of my equipment had an ICO mode. :-)

[@gtb81.]

Oh and Dave if you haven't tried it yet, I recommend scho-ka-kola german chocolate, it is very good