1. The PHILCO Phorum
  2. Philco Radio Discussions
  3. Philco Electronic Restoration
Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5

Linear Mode
Philco 15X troubles
Amyotte
Junior Member
**
Posts: 6
Threads: 1
Joined: Feb 2020
City: Peterborough State, Province, Country: Ontario
#1

02-10-2020, 03:29 PM
Hi All - just getting back into restoring radios after a few years away and it feels GREAT.  Last fall I picked up a Philco 15X radio in great shape but of course not working - the fun part.
I have recapped the set and am able to fire it up to silence. 
Checking the voltages per the online schematics I found the P to K voltages on the Push Pull 42's to be about 10VDC and should be 255VDC.
Checking the Output Transformer I am seeing something I have not seen before.  The primary side has 2 leads attached to the plates of the 42's plus a center tap.  I have 295VDC at center tap and nothing out of the top and bottom leads.
Weird thing is I get 7K ohms measuring between top to bottom leads BUT 0.7K ohms CT to each of these.
Is this transformer pooched?  Am I missing something?  Suggestions for replacement?
All other voltages on the set are close - just the P - K on the 42's are way out.
Find
« Next Oldest | Next Newest »


Messages In This Thread
Philco 15X troubles - by Amyotte - 02-10-2020, 03:29 PM
RE: Philco 15X troubles - by Amyotte - 02-10-2020, 05:47 PM
RE: Philco 15X troubles - by Amyotte - 02-10-2020, 06:47 PM
RE: Philco 15X troubles - by Radioroslyn - 02-10-2020, 07:32 PM
RE: Philco 15X troubles - by Amyotte - 02-10-2020, 07:45 PM
RE: Philco 15X troubles - by Amyotte - 02-26-2020, 03:14 PM
RE: Philco 15X troubles - by Radioroslyn - 02-26-2020, 04:55 PM



Users browsing this thread: 2 Guest(s)
[-]
Recent Posts
HiFi (Chifi) tube amp build - but my own design.
Tim Well...a chassis is metal. Magnetic or not, it does not matter. A transformer has some hum to it. It is natural....morzh — 08:40 PM
Shadow Meter Bulb
Ross I am not sure what current limiting effect the incandescent provides. They are two different parts of the sch...morzh — 08:31 PM
12' Philco
Bob Thanks for that photo. I have been looking for it, and I cannot find anythinmg on the web. I forgot it was here...morzh — 08:29 PM
Shadow Meter Bulb
I think after all has been said, I will use the same bulb that is specified for the dial pilot light which is a #55. I ...georgetownjohn — 07:31 PM
12' Philco
There was also this Philco! klondike98 — 07:25 PM
HiFi (Chifi) tube amp build - but my own design.
I expected a challenge and this is just part of it. But, it's also supposed to be fun, entertaining, informative and enj...TV MAN — 07:12 PM
Shadow Meter Bulb
Butting in here with a question. Since the shadow meter is connected directly to the 1st and 2nd I.F.'s wouldn't the met...RossH — 06:43 PM
HiFi (Chifi) tube amp build - but my own design.
Mike, Tim; you are about to enter the twilight zone. Doo doo doo doo, doo doo doo doo This is something alright. I'm go...RodB — 06:26 PM
HiFi (Chifi) tube amp build - but my own design.
:lol: We need to start a singing radio group! I play the guitar, so maybe get a few vocals? Anyways, Mike, I did try mou...TV MAN — 05:56 PM
HiFi (Chifi) tube amp build - but my own design.
And so does a barber shop quartet. mmmmmmRodB — 03:54 PM

[-]
Who's Online
There are currently 6693 online users. [Complete List]
» 3 Member(s) | 6690 Guest(s)
AvatarAvatarAvatar

>
  1. The PHILCO Phorum
  2. Philco Radio Discussions
  3. Philco Electronic Restoration