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

Philco P-4735 voltage questions.
#5

Hey everyone, Maybe someone here can answer this. Just got done restoring the radio on my '49 Packard. I replaced all the caps and most of the resistors as they had drifted in value. I hooked up the 6 volt car battery and powered the set up for the first time. All I got was a hum at the speaker which changed with the volume control. I did a voltage check and my B+ voltages were low, so I checked the voltage on the battery which sure enough was low as well. So, now I hooked up my 6 volt battery charger to the radio and powered it on again. This time I could hear the vibrator ( a brand new solid state one)kick in and voila, the radio came to life! However, when I went to do some voltage checks, the B+ voltages on my meter show about 1/2 of what the schematic says they should be, i.e. pin 3 on one of the 7C5 output tubes reads 120vdc where the schematic says it should be 240vdc? I haven't aligned the set yet but I'm getting local stations with plenty of volume. I'm using the same digital multimeter I've used on other sets and it's always read voltages correctly. This is my first car radio resto so I'm not sure if I'm missing something. Anyone have any thoughts? Thanks!
Kevin


Messages In This Thread
RE: Philco P-4735 voltage questions. - by David - 12-23-2015, 09:17 PM
Philco P-4735 voltage questions. - by 37silverstreak - 12-05-2015, 07:59 PM



Users browsing this thread: 4 Guest(s)
[-]
Recent Posts
12' Philco
Not anymore Mike. Andre The Giant Born: May 19, 1946, Coulommiers, France Died: Jan 28, 1993 (46 years), Paris, Fran...RodB — 11:53 PM
IF can wire size and Rubber mounts?
Renovated Radios do carry what you need. As for the voltage, a wire should be at least 300V-rated.morzh — 11:13 PM
12' Philco
Andre the Giant got 2" on Kareem :lol:morzh — 11:11 PM
IF can wire size and Rubber mounts?
Thanks for the info but I doubt that a hardware store would be carrying the proper tuner assembly support mountings for ...georgetownjohn — 10:38 PM
12' Philco
Perhaps Kareem Abdul Jabbar?GarySP — 10:33 PM
My last cabinet for this year
Outstanding work, Dan! Take care and BE HEALTHY! GaryGarySP — 10:31 PM
My last cabinet for this year
They are a nice looking radio, Stromberg. I have a small tabletop octagon-dial one. It sounds surprisingly nice. And t...morzh — 09:40 PM
Philco 41-608 changer coupler
Different years but the same idea.morzh — 09:38 PM
My last cabinet for this year
That’s a beauty! :thumbup:klondike98 — 09:24 PM
Philco 41-608 changer coupler
Hi Morzh, I've searched using Mondial as the user name with various keywords such as 'coupler', 'motor', 'idler', 'p...alangard — 08:31 PM

[-]
Who's Online
There are currently 4542 online users. [Complete List]
» 2 Member(s) | 4540 Guest(s)
AvatarAvatar

>