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

Mica Cap value check
#1

I'd like a little help in confirming the value on this mica cap. I think it's 3000 pfd. It's from the 1st i.f. transformer on a 41-295. Reading earlier posts suggested to me that I replace it. The value is not on the schematic or parts list since it's part of the 1st i.f. transformer. The top row of dots is not colored. The bottom row from left to right is orange, brown (no color), red. Thanks for any help.

Dave
#2

I have a schematic for a 41-295 that clearly indicates the fixed cap in primary/plate side of the 1st IF transformer to be 3000pf. Part is not specifically included in the parts list (it is included with the IF trans - item #36). Value (3,000pf) is documented on the schematic. I suspect the color code is orange/black/red, not orange/brown/red.

TFB
#3

Thanks a million.

Dave
#4

"We don't need no stinkin arrows". Its odd that they painted it in direct contradiction to the arrows. I would have thought 20,000pf which is an unlikely value for a mica cap. But I fully agree that its the 3000pf as indicated by the schematic. Maybe they meant to paint the dots on the top row?

Seems like with dot micas there are more exceptions than rules.




Users browsing this thread:
[-]
Recent Posts
Restoration of the Canadian General Electric A-87
Well... While the varnish is drying up, I started repairing the chassis... Of course I started by replacing the pa...RadioSvit — 07:12 AM
Philco Model 38-7: what caps & resistors do fail typically?
Hello Martin, Welcome aboard our little community what great Model 38-7 Sincerely Richardradiorich — 12:30 AM
Philco Model 38-7: what caps & resistors do fail typically?
Welcome to the Phorum Martin. I count about 9 paper caps, the 3 electrolytic caps and 2-Y2 safety caps to replace th...RodB — 09:44 PM
Part numbers to model cross
Jim, We have this index put together by Dale Cook but I don't think that is quite what you are looking for. The Parts...klondike98 — 09:37 PM
Philco Model 38-7: what caps & resistors do fail typically?
Yep the dim bulb test is OK but I'd definitely replace all those electrolytics before I did it. Since those #47 conden...klondike98 — 09:18 PM
Philco 42-345 Restoration/Repair
The resistor is a 2.2 Meg, it was the last one I hadn't replaced. The broadcast is coming in after replacing it.osanders0311 — 09:09 PM
Philco 42-345 Restoration/Repair
What does the resistor measure? I think it should be 3.3 Meg. If the oscillator coil has continuity and the resistanc...RodB — 09:03 PM
Philco Model 38-7: what caps & resistors do fail typically?
Good idea to check the coils... then I'll get hold of an incadescent light bulb and see what happens when the unit is sw...Musaeum — 08:49 PM
Philco 42-345 Restoration/Repair
I have that same set, ain't too much shortwave I like anyway.....it is a good AM DX set. PaulPaul Philco322 — 08:32 PM
Philco Model 38-7: what caps & resistors do fail typically?
Welcome to the Phorum, Martin! Open a new thread in Philco Electronic Restoration when you begin working on your 38-7. ...GarySP — 08:28 PM

[-]
Who's Online
There are currently 1108 online users. [Complete List]
» 2 Member(s) | 1106 Guest(s)
AvatarAvatar

>