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

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

Linear Mode
Philco Model 37-38B Questions
jjfritz5528
Junior Member
**
Posts: 42
Threads: 12
Joined: Mar 2023
City: Lancaster State, Province, Country: PA
#1

10-14-2023, 12:32 PM
Just starting the restoration on this DC set.
1. The connection to the A+ from the Volume Pot is not there. I think it needs to be, but just want to confirm. Also the #23 capacitor on the wiper is 0.015mf on the schematic, but 0.005mf installed, and appear to be original.
2. The Audio Output transformer has one of the Primary halves open. Anyone have a suitable replacement? Push-Pull, 3 Watt, 4 ohm output, ~350 ohm DC resistance. Theory question - Why are the 2 halves of the Audio Interstage & Output transformer Primaries unequal resistance?
   
Thanks
John N3MUN
Find
« Next Oldest | Next Newest »
Thread Closed


Messages In This Thread
Philco Model 37-38B Questions - by jjfritz5528 - 10-14-2023, 12:32 PM
RE: Philco Model 37-38B Questions - by morzh - 10-14-2023, 01:33 PM
RE: Philco Model 37-38B Questions - by radiorich - 10-14-2023, 01:49 PM
RE: Philco Model 37-38B Questions - by morzh - 10-14-2023, 03:51 PM
RE: Philco Model 37-38B Questions - by morzh - 10-19-2023, 08:31 PM



Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
Model 80 Antenna Issue?
Thanks Gary and Rod.  I also found an article in the Philco Repair Bench under Service Hints and Tips, about installi...Hamilton — 12:32 PM
Model 80 Antenna Issue?
Hello Hamilton, here is a little information found in our Philco Radio Library at the bottom of the Home page. Hope it ...GarySP — 11:28 AM
Model 80 Antenna Issue?
I did as you suggested and touching the middle of the volume control did nothing so the coil has to be rewound. Any idea...Hamilton — 10:19 AM
1949 Motorola 5A9M
This would be the second portable in the "other radios" forum where I have a similar one in my collection. I h...Arran — 12:41 AM
Looking for any info: 1977 Ford-Philco Console Hi-Fi Turntable and Radio
Hi PittsburgTost. The record changer looks like a Garrard or BSR (Likely Garrard). The spindles just pull out and pu...MrFixr55 — 11:57 PM
Looking for any info: 1977 Ford-Philco Console Hi-Fi Turntable and Radio
Hello PittsburghToast , Welcome aboard and it looks like gary may have something for you ! now if I dig through my se...radiorich — 11:35 PM
Model 80 Antenna Issue?
You are kind of on the right path. You can touch the grid cap of the Detector/Oscillator 36 tube. I'm expecting a respon...RodB — 08:48 PM
Looking for any info: 1977 Ford-Philco Console Hi-Fi Turntable and Radio
Welcome to the Phorum, PittsburghToast!  I found an old thread that my interest you regarding the quality and worth of P...GarySP — 08:48 PM
Looking for any info: 1977 Ford-Philco Console Hi-Fi Turntable and Radio
Welcome to the Phorum! :wave: We do not have anything on that unit in our digital library. There is a Sam's Photof...klondike98 — 08:47 PM
Model 80 Antenna Issue?
I’ve replaced all the caps and resistors and the radio is working but minimal volume unless I put my hand near the re...Hamilton — 08:24 PM

[-]
Who's Online
There are currently 972 online users. [Complete List]
» 1 Member(s) | 971 Guest(s)
Avatar

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