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

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

Philco Model 20
#1

Just bought one of these at a local shop. Case in great condition but they did not know if the electronics worked. Replaced the cord and electrolytics in the metal can before powering on. Also verified tubes and found 80 and 71 tubes were swapped - could have been messy. I then powered on and did hear some life coming out - no stations yet - but I will work on that.

I do have a question on the other metal can condensers. The 3583 and 3557 metal Bypass condensers are showing in the Philco as having a working voltage of 1200V - has anyone replaced these and do you know if I need to replace them with 1200v ratings or will 600V suffice? I'll post pics shortly.
#2

So where are they located electrically?? On the no station problem I'll bet you've got some open rf coils. Seem to be a common problem with the early sets. Also the audio driver transformer is anther go place to look for a problem.
GL
Terry
#3

As far as I remember (Philco 20 was the first radio I restored) there are no caps there that need to be 1200V.
600WV rating is sufficient anywhere in the 20.




Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
Restoration of the Canadian General Electric A-87
Well... The console body has been restored, while the varnish dries reliably I started to paint the chassis ...RadioSvit — 07:12 AM
Philco Model 38-7: what caps & resistors do fail typically?
Hello Martin, Welcome aboard our little community what great Model 38-7 Sincerely Richardradiorich — 12:30 AM
Philco Model 38-7: what caps & resistors do fail typically?
Welcome to the Phorum Martin. I count about 9 paper caps, the 3 electrolytic caps and 2-Y2 safety caps to replace th...RodB — 09:44 PM
Part numbers to model cross
Jim, We have this index put together by Dale Cook but I don't think that is quite what you are looking for. The Parts...klondike98 — 09:37 PM
Philco Model 38-7: what caps & resistors do fail typically?
Yep the dim bulb test is OK but I'd definitely replace all those electrolytics before I did it. Since those #47 conden...klondike98 — 09:18 PM
Philco 42-345 Restoration/Repair
The resistor is a 2.2 Meg, it was the last one I hadn't replaced. The broadcast is coming in after replacing it.osanders0311 — 09:09 PM
Philco 42-345 Restoration/Repair
What does the resistor measure? I think it should be 3.3 Meg. If the oscillator coil has continuity and the resistanc...RodB — 09:03 PM
Philco Model 38-7: what caps & resistors do fail typically?
Good idea to check the coils... then I'll get hold of an incadescent light bulb and see what happens when the unit is sw...Musaeum — 08:49 PM
Philco 42-345 Restoration/Repair
I have that same set, ain't too much shortwave I like anyway.....it is a good AM DX set. PaulPaul Philco322 — 08:32 PM
Philco Model 38-7: what caps & resistors do fail typically?
Welcome to the Phorum, Martin! Open a new thread in Philco Electronic Restoration when you begin working on your 38-7. ...GarySP — 08:28 PM

[-]
Who's Online
There are currently 837 online users. [Complete List]
» 3 Member(s) | 834 Guest(s)
AvatarAvatarAvatar

>