[RodB]

÷1 to Sincere Richard. I use Mouser but either is the way to go. I'm sure the others, like justradios, are in the group. You can be assured of not getting knockoffs

[morzh]

I would check things around before simply replacing the transistor.
Something killef it.

[462ron]

Yes, if the speaker was disconnected or bad connections, it could cause high enough voltage spikes on the collector to kill it especially if the volume was up high!

Ron

[R3Sons]

Indeed. Thank you all. I'll remove and test the rest of the transistors. I'm trying to trace everything at the test points. I'm really not sure why I don't have 10v at 19. There's just the one resistor at K5. I used to have 10v, but now it's 12. The only thing that changed was removing X6. I have no idea what happened to these before I got them. I'm trying to get one running for my cousin. He just got a 1965 Falcon and would like a radio. The guy he got the car from had these two radios, so no telling when they stopped working or why. I really appreciate everyone's help. Thank you.

[R3Sons]

I'm a little befuddled on this one. Should X5 and X4 be tied together like this?  It looks like someone added this at some point.  I haven't removed them yet, I wanted to see what you thought before I did.  It looks kind of funny to me.

[morzh]

I suspect it's been repaired before.
And I suspect whoever repaired it, wanted to re-use old transistors' pin stubs in order not to desolder them.
I also suspect that if you look at the other side of the PCB, you might find delaminated/unglued traces.

Inspect the whole thing, and try to stick to the schematic.

[R3Sons]

Thanks, will do.

[morzh]

Oh...and you have electrolytic caps there.
All need to go and be replaced.

[R3Sons]

Quick progress report:
X7 is broken. Only one leg soldered, the other missing and the diode is cracked.
I've replaced all of the electrolytics.
C1 is confusing me. The parts list had two different values, but I can only find one C1 on the schematic. I have a 270uf in there now, I suppose I should change that to the 1000uf.
Point 1 is 12.2v, point 2 is 10V, but everything else is 11.5v, not really sure why.
I'll need to replace X6 and X7.

[morzh]

If you are still on 5TPO, you lost me there. What X7? What Points 1 and 2?

[R3Sons]

Yeah, I'm still on 5TPO. Sorry, my bad, points 1 and 2 should be points 18 and 19 (easy mistake   )  X7 is shown in the picture.
I'm closing in (I thought I was). I'm just having the darndest time finding transistors.  I found the diode for 91 cents, but the shipping is 8 bucks.  I'd like to get everything at one place. Between both radios I need a complete set, plus an additional X6.
I've searched everywhere, but I can't find those or any direct replacements.  I really don't want to sort through a whole bunch of data sheets.  Does anybody have a line on the replacements, or a way I might be able figure that out?

Thank you all again.  I think I'm almost there.  Oh, I was getting a fair amount of scratching through the speaker.

[morzh]

OK, so 18 and 19 as they should be.
What is "everything else?"
Try to be more specific in your descriptions: there are many points, and they all will have very different values.

The diode: find any Ge diode, small signal high frequency, 20V or more Vr.

This is the original on eBay

https://www.ebay.com/itm/204896261569?_s...R_Tj4IKgZQ


On Amazon

https://www.amazon.com/ALLECIN-1N60-Scho...673&sr=8-3


No, I am not sure you could buy 1 pc and have it shipped for $1.

[R3Sons]

Sorry. The test points are as follows:

1 - 0v
2 - 0v
3 - 0v
4 - 12v
5 - 0v
6 - 11.9v
7 - 12v
8 - 12v
9 - 12v
10 12v
11 - 11.5v
12 - 11.5v
13 - 0v
14 - 10.8v
15 - 5.4v
16 - 12v
17 - 12.2v
18 - 12.2v
19 - 12v
20 - 11.5v
21 - 11.5v
22 - 11.5v
23 - 10.83v
24 - 11.5v