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
40-216 SW antenna compensating condenser
rjm
Member
***
Posts: 70
Threads: 17
Joined: Jan 2006
City: Newbern State, Province, Country: Tennessee
#1

11-15-2022, 05:12 PM
My compensating condenser on the SW antenna broke. Would anyone know the value. Listed in the schematics as part # 31-6326. None of my parts books I have show it. I have tried what I have a 40-240pf and a 110-580pf. Can't dial in to a strong signal from my signal generator. Cuts it or makes it weak. If I disconnect the internal antenna and run a wire, it picks up the generator strong at 18mc, adjustment frequency.
any help would be appreciated.

Thanks,
        Richard
Find
Radioroslyn
Phorum Expert
*****
Posts: 7,295
Threads: 268
Joined: Dec 2009
City: Roslyn Pa
#2

11-15-2022, 05:31 PM
At 18mc you are not going to need much capacitance. I would start w/20mmf and go down if necessary.

GL
When my pals were reading comic books
I was down in the basement in my dad's
workshop. Perusing his Sam's Photofoacts
Vol 1-50 admiring the old set and trying to
figure out what all those squiggly meant.
Circa 1966
Now I think I've got!

Terry
Find
rjm
Member
***
Posts: 70
Threads: 17
Joined: Jan 2006
City: Newbern State, Province, Country: Tennessee
#3

11-15-2022, 06:07 PM
cool thanks. I can get a 2-70pf. Should give me the range.
Find
« Next Oldest | Next Newest »
Thread Closed




Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
First Radio restoration
Hi Tubeman, Welcome to the Philco Phorum.  Phamily Phriendly Pfun with Phine Pholks Phull of Philco Phacts. (See a p...MrFixr55 — 12:33 PM
First Radio restoration
You could post in the WANTED ADs section here on the Phorum and see if anyone has an RF generator that they want to sell...klondike98 — 11:55 AM
Zenith H725
Good ideas, thank you Arrange and Rich. I have the adhesive aluminum foil already and can try that immediately. More ...EdHolland — 10:18 AM
Graphics for majestic 1050 dial glass.
Murf; I found this thread on the ARF, the first photo has a pretty good view of the dial glass. Regards ArranArran — 01:12 AM
Zenith H725
hello Ed, how about that speacial tape used for ducting it's like foil or how about thin piece of aluminum roof flash...radiorich — 12:19 AM
Zenith H725
Ed; One material that I have seen, but never tried for this was material for making exhaust gaskets, it's similar to ...Arran — 11:42 PM
Zenith H725
I just remembered, I have some hi temp silicone rubber material which could do the trick. Or a piece of FR4 laminate. Th...EdHolland — 08:39 PM
Zenith H725
The PSU filter cap arrived today (thank you USPS!) so I will work on that later. Meanwhile, I have the dial, speaker...EdHolland — 06:42 PM
Philco 610B oscillator wiring
Thanks Terry. After checking my notes I think I recorded about -10v at the 6A7 G4/control grid. The screen grid (G3 &...Tubester — 05:59 PM
The list of my radio & TV collection!
Magical chords of forgotten melodies, old nostalgic music on an old radio... Saturday night blues on the Mid-Waves on an...RadioSvit — 12:20 PM

[-]
Who's Online
There are currently 2184 online users. [Complete List]
» 3 Member(s) | 2181 Guest(s)
AvatarAvatarAvatar

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