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

Model 118 Cap question
#1

I'm working on the above and one of the bakelite caps is a dual .0001 (100pf) cap (Philco P/N 8035K). My question is "would these be mica" and less subject to replacement? I have not seen caps of this value in bakelite enclosures. Thanks for your thoughts (I don't currently have any 100pf caps).
Jerry

A friend in need is a pest!  Bill Slee ca 1970.
#2

I have run into 8035 DG before. There were 2 mica caps inside when I opened it up. So I think in your case they are likely to be Mica's too.
#3

Thank you Chris, that takes the number of restuffs down from 11 to 10! Icon_clap Jerry

A friend in need is a pest!  Bill Slee ca 1970.
#4

If those are in the 2det circuit the value isn't very critical as they use to filter any rf signal out of the detected audio. Anything from 100 to 500mmfd will work fine. When you start to use one than are big you will start to lose the hi frequency response in the recovered audio.
Terry
#5

I've seen those with micas inside...but most of them I've opened up had tiny paper caps inside! Icon_eek

You'd better rebuild it, too. Better safe than sorry!

--
Ron Ramirez
Ferdinand IN
#6

Well dang Ron, you really know how to spoil the party!Icon_biggrin Now I'm back up to 11 to restuff and need to find a couple 100pfd caps. Yes Steve, they are in the second detector circuit appear to be relatively low voltage, would ceramic caps work?

Jerry

A friend in need is a pest!  Bill Slee ca 1970.
#7

I've got some nice 100pf caps on hand. I can send a few to you if you would like.
#8

Brenda, PM sent.
Jerry

A friend in need is a pest!  Bill Slee ca 1970.




Users browsing this thread:
[-]
Recent Posts
Need Help to ID this radio 11 tube Philco
I did R73 RCA. It has a phenolic board with all stuff mounted on it. And the wiring is deep under everything including ...morzh — 10:37 AM
48-482 rear panel help
Hi Keith, here is an article that covers different FM detector circuits including a section on the theory and alignment ...462ron — 08:26 AM
462ron
Well then Dan I guess this old man’s memory wasn’t too foggy :lolno: although I couldn’t remember where I saw that upgra...462ron — 08:08 AM
Need Help to ID this radio 11 tube Philco
Fortunately, I did not have to do much to my GE S-22 (RCA R7A) Almost all caps and the 2 audio transformers packed into...MrFixr55 — 07:44 AM
48-482 rear panel help
Yup Arran is correct it is missing the pushbutton covers. I don't know where they all go but it's a common issue on this...Radioroslyn — 06:48 AM
48-482 rear panel help
I also have one of these, again it never had a back, and no trace of one. I have been told that the pushbuttons used to ...Arran — 03:29 AM
48-482 rear panel help
Thanks Joseph. Hope you get to restore your 48-482 before too long!keithchip — 02:12 AM
Need Help to ID this radio 11 tube Philco
RCAs ain't no cake either.morzh — 10:32 PM
Philco 46-480 Electronic Restoration
After a couple of days worth of troubleshooting my signal generator, I gave up. The oscilloscope still worked fine, so I...jrblasde — 09:51 PM
48-482 rear panel help
Yes, I can confirm. I bought one (haven’t restored it yet) which didn’t have a back panel.jrblasde — 09:37 PM

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

>