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

Linear Mode
46-1226 run 122 with squeal
Jim Dutridge
Senior Member
****
Posts: 290
Threads: 54
Joined: Mar 2007
City: Toledo State, Province, Country: OH
#1

12-21-2010, 09:11 AM
This radio has been recapped and all OOT resistors replaced. When brought up on a variac with the volume control turned completely down, the radio will squeal loudly once the current draw reaches around 460ma. If I turn the volume up slighlty the squeal will stop, but returns has the current draw continues to increase.

I have not moved any wires except for extending 2 B+ lines to reach the new terminal strip holding the replacement filter capacitors, and these were run right next to the chassis. I suspect I might have a bad volume control but I don't know what the value of the tap is. Right now it measures just over 1 MEG on this 2 MEG control. The Sams, 15-24, does not show the value. The part is an original Philco part, #33-5535-1. Anyone know what the tap value should be? Thanks.
Find
« Next Oldest | Next Newest »


Messages In This Thread
46-1226 run 122 with squeal - by Jim Dutridge - 12-21-2010, 09:11 AM
Re: 46-1226 run 122 with squeal - by Ron Ramirez - 12-21-2010, 09:37 AM
Re: 46-1226 run 122 with squeal - by Jim Dutridge - 12-21-2010, 10:22 AM
Re: 46-1226 run 122 with squeal - by Jim Dutridge - 12-21-2010, 01:52 PM
Re: 46-1226 run 122 with squeal - by Ron Ramirez - 12-26-2010, 09:22 AM



Users browsing this thread: 2 Guest(s)
[-]
Recent Posts
Made mistake & did not label connection
Hi John, I don't have this radio, but I can supply some info: Based on your pic, pins 7,8 and 1 are used together, go...MrFixr55 — 02:02 PM
New Philco Repair Bench
As far as I know, the Repairbench does not work, and has not been working in a while. Chuck (we had that campaign looki...morzh — 01:33 PM
Radio city products 664 schematic request
Need a schematic or manual for the 664. The 663 may be similar.daveone23 — 12:38 PM
New Philco Repair Bench
Thanks Gary.dconant — 12:16 PM
New Philco Repair Bench
I tried accessing the site through our library and got the same response. It's reported to our tech gurus. GaryGarySP — 11:50 AM
New Philco Repair Bench
I am sure this is the archive, and not the Chuck's site.morzh — 09:50 PM
Made mistake & did not label connection
It's not like we are good friends with that wire and can tell it from other ptetty identical looking wires. Why'n't you...morzh — 09:49 PM
Made mistake & did not label connection
I'm not sure why that wire wasn't covered in the video. I'm pretty sure the 6A8 won't work until that pin is grounded. Y...RodB — 09:47 PM
Made mistake & did not label connection
You'll have to forgive me, I am not sure what you mean.  Can you explain what you are really saying.  If anyone does not...georgetownjohn — 08:05 PM
Made mistake & did not label connection
Those are details better left to the ones who know. Maybe you disconnected the wrong end of the wire.RodB — 06:22 PM

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

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