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

philco 41-220 Questions
#1

Hey Guy's
I have a Philco 41-220 that I'm having a problem with the alignment. 
Here is the link   http://www.nostalgiaair.org/PagesByModel...013395.pdf
Here is a some info I came across which pretty accurately describes what I'm hearing
http://www.antiqueradios.com/forums/view...6&t=213839 

I have tested the tubes the only problem is the 35A5 is replaced with a 50A5 could this be a problem?

Is there a way to find if there was a change in this radio concerning the IF can's? I ask that in #26 the 2nd IF should only have one trimmer and I have two? I also checked the Resistance of the coils and they are 25 & 26 ohms and the print shows 60 & 8 ohms??

When doing step one where it calls for hooking the signal gen "ant section of tuning section" are they referring to 5B?

Should I put a .05 cap in series with the signal lead? Should I disconnect the external antenna in this first step? I don't seem to pickup a tone at 455.
the other steps I get a tone at 1600 and 1500.

Thanks Eric
#2

I figured out what I did wrong! #9 a .25 cap also had a wire wrapped around one end and electrical tied to that end and then to ground. and that end of the cap went to the center of the 7c7 which when I checked was not grounded even though it looked like it was so I added that wire to ground and that took care of it!

Eric
#3

Icon_thumbup




Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
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
Made mistake & did not label connection
Maybe this is starting to make some sense in my hard head.  Is this why the wire in question was not in the great Ron Ra...georgetownjohn — 04:34 PM
Made mistake & did not label connection
I was correct with the 6A8 pin connection's, 7 and 8 are connected to ground as well as the tube shield (the broken line...RodB — 02:41 PM

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

>