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

Help on 48-482 FM
#10

Thanks again Terry. Today I took the cover off the FM detector can and fired it up. With the cover off it did change the frequency slightly. I put a 20pf cap across the trimmer and voila, shifted the frequency of the oscillator from 10.6 to 8.5 pf. Looks like I need to post to see if I can find a replacement used xformer (philco pn 32-4004) or maybe a defective one with a good trimmer. Unfortunately the schematic does not give a value for trimmer. At least I feel I am making progress. Still amazes me that the set receives FM fairly well. Thanks for your help.
Jerry

A friend in need is a pest!  Bill Slee ca 1970.


Messages In This Thread
Help on 48-482 FM - by jerryhawthorne - 11-12-2008, 04:57 PM
Re: Help on 48-482 FM - by codefox1 - 11-14-2008, 02:42 PM
Re: Help on 48-482 FM - by jerryhawthorne - 11-14-2008, 03:55 PM
Re: Help on 48-482 FM - by jerryhawthorne - 11-15-2008, 10:00 PM
Re: Help on 48-482 FM - by Ron Ramirez - 11-16-2008, 03:13 PM
Re: Help on 48-482 FM - by jerryhawthorne - 11-16-2008, 08:35 PM
Re: Help on 48-482 FM - by Terry Judkins - 11-16-2008, 11:01 PM
Re: Help on 48-482 FM - by jerryhawthorne - 11-17-2008, 08:01 PM
Re: Help on 48-482 FM - by Terry Judkins - 11-17-2008, 08:27 PM
Re: Help on 48-482 FM - by jerryhawthorne - 11-18-2008, 10:01 PM



Users browsing this thread: 3 Guest(s)
[-]
Recent Posts
12' Philco
GarySP — 01:17 PM
Hickok AC51 tube tester
I think they have only shown the secondaries of the transformer. Two of them feed the rectifiers' filaments.morzh — 12:58 PM
IF can wire size and Rubber mounts?
Arran If the wire inside cans is the gauges you mentioned, the sole reason for that would be mechanical, to stiffen t...morzh — 12:56 PM
12' Philco
Rod, Yes, I know, but the Giant Philco is not around anymore either, so I go by whoever was alive fairly recently. H...morzh — 12:54 PM
Hickok AC51 tube tester
Absolutely no one is going to reverse engineer that circuit. Even the iron core is missing.RodB — 10:37 AM
IF can wire size and Rubber mounts?
Thanks to both members for your help regarding wire and tuner mtg supports. regards--Johngeorgetownjohn — 09:33 AM
Hickok AC51 tube tester
Note that no power cord, power switch, or power transformer switch are shown. That (along with my experience with full s...DaleHCook — 07:09 AM
IF can wire size and Rubber mounts?
A pair of wire strippers can give you an idea of what the existing gauge of the wire leads are in the IF can, I think it...Arran — 06:07 AM
My last cabinet for this year
Hello Dan, That is really beautiful what great looking radio you have ! I have friends who live in Calgary and the wea...radiorich — 01:51 AM
Philco Predicta Siesta picture over time getting dimmer
I found that the wire insulation was burnt.  The fly back needs corona dope! Why would someone put that there?Platinumblonde36 — 01:09 AM

[-]
Who's Online
There are currently 5156 online users. [Complete List]
» 1 Member(s) | 5155 Guest(s)
Avatar

>