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

Philco Part
#1

Hi all
I started to align my philco 37-675 in the alignment instructions to tune the RF and ANT. it refers to a part 45-2325 clipped
to the trimmer in the band 5 and band 4 to tune the these caps. Does anyone know anything about the 45-2325 item?  Icon_think
Thanks
Joe

Joe Bratcher near Louisville, KY
#2

That was a 350 pF variable capacitor, as I recall, and was set to make the second harmonic of the oscillator beat against the signal from your signal generator.

You can use any variable capacitor in the neighborhood of 350 to 365 pF or so, it does not have to be the actual 45-2325 item.

--
Ron Ramirez
Ferdinand IN
#3

Thanks Ron  Icon_clap
Joe

Joe Bratcher near Louisville, KY




Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
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
37-690 Bass Choke Replacement
Ah, now where to find one. I've into this before on smaller sets, I now recall. Hammond makes one that is only rated...Radiodial — 03:27 PM

[-]
Who's Online
There are currently 1593 online users. [Complete List]
» 3 Member(s) | 1590 Guest(s)
AvatarAvatarAvatar

>