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

Threaded Mode
Philco 48-1264
vecher
Phorum Expert
*****
Posts: 933
Threads: 140
Joined: Mar 2015
City: Lansdale State, Province, Country: PA
#1

01-23-2022, 04:14 PM
Any one know where you hook up the Fm antenna to this?

Skip
Find
Mondial
Phorum Expert
*****
Posts: 1,114
Threads: 14
Joined: Feb 2013
City: Irvington, NY
#2

01-23-2022, 04:23 PM
There is a little 4 pin socket on top of the RF front end chassis, between the AM antenna terminal strip and the 6BA6 IF tube. The schematic shows the pin connections for the mating plug of the in cabinet FM dipole.

https://philcoradio.com/library/download...8-1949.pdf
(This post was last modified: 01-23-2022, 04:24 PM by Mondial.)
Find
vecher
Phorum Expert
*****
Posts: 933
Threads: 140
Joined: Mar 2015
City: Lansdale State, Province, Country: PA
#3

01-23-2022, 05:36 PM
ok thanks hooked up antenna FM completely dead no noise or signals. AM works fine.

So either doing something wrong? or FM is bad.. Not sure what to check next.

Skip
Find
vecher
Phorum Expert
*****
Posts: 933
Threads: 140
Joined: Mar 2015
City: Lansdale State, Province, Country: PA
#4

01-23-2022, 10:43 PM
ok started to go thru alignment procedure for Fm

Fm alignment steps 1 and 2. heard the 9.1 mhz signal.. did not adjust anything yet...had to use a strong signal. -3.5 dbm modulated.

went to next step sig generator to pin 4 j400 frequency of 105 mhz no signal heard at all..

Skip
Find
vecher
Phorum Expert
*****
Posts: 933
Threads: 140
Joined: Mar 2015
City: Lansdale State, Province, Country: PA
#5

01-24-2022, 08:41 PM
OK Found problem... The 7F8 converter tube was loose in socket moved it around and FM started working.

So now onto alignment

Skip
Find
« Next Oldest | Next Newest »
Thread Closed




Users browsing this thread:
[-]
Recent Posts
Philco 610B oscillator wiring
Thanks for the replies. It's not the really the hum that I am after. Just trying to understand why only the shortwave ba...Tubester — 04:01 PM
Restoring Philco 96
70 and 90 are Superhets, but at least the 2x45 model of 90 uses the Plate detector (and so does 70). Also the Atwaters,...morzh — 03:28 PM
Restoring Philco 96
Morzh, Prayers for your mom. I am sure that there was enough pain living through the Holocaust as a child. I pray dail...MrFixr55 — 02:19 PM
Philco 610B oscillator wiring
Hi Dan, Divide and conquer. First off trry to differentiate between 60Hz and 120 Hz hum. 120 Hz hum has a higher pit...MrFixr55 — 01:49 PM
Restoring Philco 96
Yes, other than takin a toll on your back, they are undeed way more repair friendly than many other Philcos. To me, som...morzh — 01:04 PM
Philco 610B oscillator wiring
If the wires look like they were this way from the factory (very neat and very dull soldering joints), I'd leave them be...morzh — 12:58 PM
My Philco 37-116 Restore
I managed to open up the Expander Unit and replace the grid cap wires. Tested the connections found they looked good and...dconant — 12:19 PM
610B Oscillator Questions
I've included a picture of the 'actual' schematic I created. I double checked several times and it appears to be accur...Tubester — 09:26 AM
First Radio restoration
Hi, welcome. I did a 40-130 a few years ago. I was very surprised at how well it performed. Just take care with that sp...Stan the Man — 07:20 AM
Restoring Philco 96
Situations of the like are not pleasant. Life is inevitable. Best of luck to you. I have two 76 chassis, in different ...Stan the Man — 07:12 AM

[-]
Who's Online
There are currently 1764 online users. [Complete List]
» 2 Member(s) | 1762 Guest(s)
AvatarAvatar

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