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

Linear Mode
Philco Jr. Model 81 Volume Circuit
Bill Bacco
Member
***
Posts: 94
Threads: 9
Joined: Feb 2013
City: Monroeville, PA
#4

03-05-2013, 01:30 PM
That 4 meg is correct. At least as originally designed. I have since modified it to a 2 meg based on tip I found at the following:

http://www.philcorepairbench.com/tips/svctip44.htm

I messed around a bit trying to add some resistance to the front end, but didn't have much luck.
(This post was last modified: 03-05-2013, 01:31 PM by Bill Bacco.)
Find
« Next Oldest | Next Newest »


Messages In This Thread
RE: Philco Jr. Model 81 Volume Circuit - by Bill Bacco - 03-05-2013, 01:30 PM



Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
New Philco Repair Bench
Apparently there is a new Philco Repair Bench found at https://philcoradio.com/repairbench/ When I try to go to order a ...dconant — 12:00 PM
Philco 60 Squealing
Well, a wave trap is a trimmer in series with the coil so at the resonant frequency it provides a short to ground. This ...RodB — 10:07 AM
Philco 60 Squealing
Rod, My radio is run 7. The wave trap is on that schematic as shown in the picture. dconant — 09:21 AM
American Bosch Model 802 auto radio
Hi Arran ,  Thanks for your help with this radio.And especial thanks for letting me know to look it up under United Ame...Antipodal — 04:32 AM
Philco 60 Squealing
Usually a wave trap is for keeping IF signals from entering the antenna and from leaving the antenna. You feed an IF sig...RodB — 09:30 PM
Philco 60 Squealing
I just peaked it for the best signal at 600. NULL it for IF frequency, originally it would have been null for 500kh...Chas — 08:05 PM
Philco 60 Squealing
Wavetrap no longer matters.morzh — 05:19 PM
Philco 60 Squealing
Rod, I had checked out your suggestions but did not help. I did solder the ground rivets to the chassis as Chas suggeste...dconant — 04:52 PM
37-690 Bass Choke Replacement
Yeah, I know, Mouser and Digikey don't have "big iron" components. For some reason Philco was messing with the...Radiodial — 04:25 PM
37-690 Bass Choke Replacement
Yes, I just had to deal with that while repairing the 37-604 Philco. Exactly that value choke was gone. And the current ...morzh — 03:52 PM

[-]
Who's Online
There are currently no members online.

>
  1. The PHILCO Phorum
  2. Philco Radio Discussions
  3. Philco Home Radios