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 90 Stoped Working
#1

Some may recall, I restored this late version 90 (2 PP 47 output) last winter. It started about a month ago, the radio would stop playing. You could tune to the high end of the dial and it would come back on. It may work for several days before it would happen again. It began to get more and more frequent, finally getting to the point it would never play on the low end. Suspecting the oscillator, I confirmed using another radio. First I tried a couple of different 24A tubes in the oscillator position, one gave a slight improvement but, would still drop out. Tonight I pulled the chassis out and used a heat gun to heat the oscillator coil while it was still installed in the chassis. The radio now plays fine.   I plan to use the radio as long as it keeps working. If it happens again, I'm thinking about doing Ron's "super" mod. The late version 90 is pretty much the same as the 91 except it has 2.5 volt tubes so, I would have to use a 2A7 tube for the oscillator. Any thoughts?

Steve

M R Radios   C M Tubes


Messages In This Thread
Philco 90 Stoped Working - by Steve Davis - 03-26-2020, 11:25 PM
RE: Philco 90 Stoped Working - by morzh - 03-27-2020, 12:00 AM
RE: Philco 90 Stoped Working - by Ron Ramirez - 03-27-2020, 09:56 AM
RE: Philco 90 Stoped Working - by John Bartley - 03-27-2020, 10:37 AM
RE: Philco 90 Stoped Working - by Steve Davis - 03-27-2020, 05:27 PM



Users browsing this thread: 2 Guest(s)
[-]
Recent Posts
Atwater-Kent 84, restoration.
Well, powering it up would be too good to be true, and I had that feeling. Before I did, I decided to check the coils...morzh — 06:02 PM
An attempt to remove the Field Coil from a G speaker
Thanks Chas, sure will give it a look!morzh — 03:39 PM
An attempt to remove the Field Coil from a G speaker
Mike, Lookup  murrayatuptown on ARF. Seems he has a dilemma with surplus field coils. Could get lucky and have what y...Chas — 01:26 PM
Atwater-Kent 84, restoration.
Hello Mike, I have not checked to see if my console has a fuse or not and far as sets go I have early 30s General Motor...radiorich — 11:25 AM
Atwater-Kent 84, restoration.
Ron I forgot, but when you said "phone number", I remembered, caus I usually remember how I act when I need...morzh — 11:12 AM
Atwater-Kent 84, restoration.
You have an extensive collection of Philcos, Mike! I’m always excited to see each new one. Agreed on the power supply fu...jrblasde — 10:50 AM
462ron
Hi Mike, that 84 sure looks great. You don’t often see these antique radios with a fuse like yours has. I usually instal...462ron — 10:22 AM
Atwater-Kent 84, restoration.
Hello Mike, Wow ! far as my AK it does work and the cabinet is in nice shape so is my chassis anyway here is a photo of...radiorich — 02:59 AM
Atwater-Kent 84, restoration.
Nice radio, Mike! Here's hoping it was well rebuilt. Take care and BE HEALTHY! GaryGarySP — 12:12 AM
Atwater-Kent 84, restoration.
Rich yes, this is the way I got it. I have just put it on the table and took it apart. I suspect it even might work,...morzh — 11:31 PM

[-]
Who's Online
There are currently 3557 online users. [Complete List]
» 1 Member(s) | 3556 Guest(s)
Avatar

>