Welcome Guest! Be sure you know and follow the Phorum Rules before posting. Thank you and Enjoy! (January 12) x

Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5

6TPZ and 5TPO Radio Help
#46

On K2, pins 1&2 are shorted. On K4, Pins 1&3 are shorted. Others are OK.
The voltages are the same except #4. I must have had the lead on the wrong pin. #4 is 0v.
#1891 is a bulb. There is one wire from the volume pot to the lamp. That wire is 12.2v.
I've been testing with chassis as ground.
Point 19 is definitely 12v. I must have messed something up before. All points except #4 are the same.
X3 and X6 are bad. X2 and X4 are good. X5 I haven't been able to test yet.
#47

On K2, pins 1&2 are shorted. On K4, Pins 1&3 are shorted. Others are OK. - your 0.047 caps are fried in both

The voltages are the same except #4. I must have had the lead on the wrong pin. #4 is 0v. -  better

#1891 is a bulb. There is one wire from the volume pot to the lamp. That wire is 12.2v.  - OK, so it is just 12V to lamp. no effect on the rest of the circuitry.

I've been testing with chassis as ground.

Point 19 is definitely 12v. I must have messed something up before. All points except #4 are the same. - Like I said, it is wrong on many levels, and there are probably short and burns of parts.

X3 and X6 are bad. X2 and X4 are good. X5 I haven't been able to test yet. - It seems this radio had some major surge. Caps shorted, transistors burnt. Or someone tried to plug it into something that it shouldn't been plugged into. I am not sure what those K assemblies are. If they are potted circuits, you will need to somehow replace them. If resistors are good inside, you could try to hook up bad parts (caps) outside.


If you want to be a good sport and keep doing it, great. But it seems like you might have to replace half the parts.
Basically, from what I think might've happened to it, you need to check every single component.

If you do this, we could answer questions one by one as you go along.

PS. To my taste (and had I had that radio in front of me and all the parts available, I probably could fix it in a day or so), to me personally it would not be worth it and I would just toss it. If it has any special significance....sure.

People who do not drink, do not smoke, do not eat red meat will one day feel really stupid lying there and dying from nothing.
#48

Thank you. I have to take a break from it for about a week. I'll have to do some thinking. I was toying with the idea of making a PCB and populating it with available parts. Just not sure how I would connect the tuning circuit. I could remake the potted circuits, but I'm not sure I feel like it. I was thinking about maybe just trying to connect some good caps on the outside. Like I said, I'll have to decide. Parts are very hard to find. If I had all of the parts, I wouldn't hesitate to rebuild the whole thing, but that's not the case. Thanks for all the help. I'll let you know.




Users browsing this thread: 2 Guest(s)
[-]
Recent Posts
Philco 630csx power cord
Have you opened up that plug? It may be that the third wire is connected to that brass stud on the side of the plug and ...Arran — 02:57 AM
Model 27-84 BUZZ?Humm?
I would have to look at the schematic but it's not uncommon in 1930s AC radios to have the negative of one filter cap co...Arran — 02:46 AM
Model 27-84 BUZZ?Humm?
Hello Bruce, First all do mean a 37-84b ? Did you take any before and after pictures ? is it a buzz like when you touch...radiorich — 01:59 AM
B&K 1077B no video - problem solved
Hello Tim, Yes, I even check all of my replacement parts when I install them and I too had a capacitor go bad not long a...radiorich — 01:54 AM
B&K 1077B no video
I got back into it tonight. Problem found and resolved! Sometimes it helps to take a break and think things over. It was...TV MAN — 12:40 AM
6TPZ and 5TPO Radio Help
Thank you. I have to take a break from it for about a week. I'll have to do some thinking. I was toying with the idea ...R3Sons — 12:21 AM
Model 27-84 BUZZ?Humm?
Drowning in a overloud buzz/Humm. Have already changed filter caps,bakelite blocks( caps),out of speck resistors,checked...Bruce — 12:17 AM
Philco 630csx power cord
Hello Mike Here is the Link to the company the place is called Grand Brass lamp parts . I buy all my Lamp parts plus ...radiorich — 12:00 AM
Philco 40-120C Filament Wiring
Is the tube in your radio actually 35Z3 or 35Y4, or something else?morzh — 10:55 PM
Philco 630csx power cord
Second Rich's opinion. Run a separate antenna wire. Use a separate plug. Rich Where did you get this wire? Se...morzh — 10:51 PM

[-]
Who's Online
There are currently 1239 online users. [Complete List]
» 3 Member(s) | 1236 Guest(s)
AvatarAvatarAvatar

>