Servicing a 1957 General Electric model 14s208 b&w, vacuum tube television. P4/? -start of the recap
ฝัง
- เผยแพร่เมื่อ 10 ธ.ค. 2024
- Finally installing the capacitors for the Power supply and pulling up one of the two boards to check and recap.
Scary the poor QC these boards have! connections on the tube sockets not even soldered, just resting!
There's this crud that is going around. Not the flu or covid, but gets in the lungs. Lingers and takes time to clear completely.
Sounds like what I've got.
I'm wondering if those loose tube socket contacts at the board were that way when they left the factory. Hard to imagine they were. But this is a place where you would have had a massive number of heat/cool cycles that eventually degrade the solder joint at the circuit board. Anyway, that's my theory, for what it's worth.
It looks like GEC made a crude attempt at thermal isolation by cutting holes into the PCB and mounting the tube bases with an air gap to prevent the boards from burning up. In doing that (got to admit the boards don't look heat damaged) and only soldering the tube base pins to the PCB they have failed with dry joints, especially where a spartan amount of solder was used. If they had maybe rivetted the pins to the board it might have made them more reliable. But then it would make changing the tube bases very difficult. In short I don't think PCBs and tube bases go together and point to point was probably a better way to go. But these are relatively early PCB production days and a lot has been learnt since then (you would hope),
Gettified: Probably in the runnng for Top Word of The Year Award!
My problem is trying to stay awake sometimes (I don't skip through the video because I like to watch even what you call the boring parts, but sometimes I can't help it)
It’s almost impressive the engineering GE used trying to wring every last cent of cost out of some of this stuff.
Hey JP if you ever run into an avc50 Yamaha amplifier do a video on it because mine's always overheating and I'd love to know why
Acc 50
How hot does it get idling with no music playing after 30 mins?
@@JordanPier it's not hot at all when idling it just starts getting very hot when I start cranking it up
And I got a couple of fans on the top running on it now
@@jugent2012 how many speakers? Impedance of each speaker?
Did you stop taking on amplifiers?
No, the shop I work for is still taking in amps and such, but no more tv or antique radio work on my end. I do this sort of work in my off hours
POS ! Still a few around in the day. Wouldnt fix them, just make it run badly
again. Customer had to see it work & sign off for no warranty etc. . Same with Philcos.
LFOD !
Far be it from me to tell you what to do but just FYI, I watch all your videos except the TV ones. Reason being I consider CRTs to be a completely dead format. I know you can pipe video to them but it's low res and overall I just can't muster any interest whatsoever. Still love your work. Looking forward to seeing you do another fan or a radio/amplifier or something.
Yeah, I know tvs are kinda boring. This is more for the educational purpose of troubleshooting and what's really needed to tackle these.
JP I know you love the wick but if you’re interested I have a Hakko vacuum gun I bought a year ago and found I had no use for so you’re welcome to it and it’s accessories if you’d like…gift to the channel and you for all that I’ve learned from your videos. I don’t know what the most appropriate way is for me to get a shipping address from you but you can decide if it’s something you want and let me know. Thanks!!
In all honesty, I'm grateful for the offer, but I've used the vacuum guns and pistons and the big issue is getting them into tight spaces. If I have large quantities then I'll use a bulb. Otherwise wick it is. Thank you though! I can't imagine a time where I would need one.
You’re welcome! I’m stuck in 1948 with most of my restorations so, I agree, getting it into tight places in those chassis is why I found little use for it but when I’ve worked on more modern stuff, getting things like IC chips off boards was an absolute snap! Anyway if you find it could be useful it’s yours. Glad you’re feeling better! Take care.
Judging on the amount of views, not a lot of people like watching you change the capacitor. It's been done a million times on youtube
Yeah, its boring work. The owner of this requested the process, and I'm getting paid for it. That's why i try to have filler videos of other work in between these. Just been alot of TV related repair work lately.
@@JordanPierhonestly I find it quite interesting and educational
I like it too, especially for beginners.
Jordan is doing the lords work restoring my set. Some aspects of tv repair aren’t exactly sexy and fun but with a set as crammed as this one I’m sure this could be of use to the community that dares attempting stuff like this. I don’t think he does it for views but rather to pass on knowledge that very few people possess these days.
Your videos have become my safe space. In a world full of @user-yn8mz5bf...'s you just stay calm and keep on. I look forward to every second of your content.