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

Garbled output Stomberg Carlson 561
#4

Sounds like you are OK. Od course, orange drops are OK to replace the tubular caps. The range of -20 to +50 percent is usually OK in values, if you cannot get an exact match. I always replicate the windings around the grounding caps (6 or 7 turns around the .15 or .25 capacitor to somehow null out possible problems with the I.F. There are two of 'em on shortwave sets. There were even "magic" capacitors in some sets in the late 40's which attached one lead of the capacitor to the center of the foil to do the same thing. I now think this is snake oil, as I can't tell the difference when I sub a new cap of about the same value for the old leaky greasy plug. Somebody is going to disagree with me, I'm sure, but I still wind a few turns of wire around a nice old (non leaking) oil capacitor from my stash to preserve the looks and perhaps intention of the design.

If you need a non standard value of capacitor, you can probably parallel two to make up the value in many cases. If you need an .03 capaciror, abd you have only .01 and 0.2, you can probably just put them together in parallel and be done with it. I would probably just go with the .02 alone and see what happens. Remember that old leaky moisturized capacitors drift up to 50% and keep on going for decades before causing serious problems. That's how fault tolerent tube circuits are.

I hope this is helpful.


Messages In This Thread
Garbled output Stomberg Carlson 561 - by garyh1 - 01-04-2009, 04:53 PM
Re: Garbled output Stomberg Carlson 561 - by codefox1 - 01-05-2009, 09:46 PM



Users browsing this thread:
[-]
Recent Posts
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
Philco Model 38-7: what caps & resistors do fail typically?
Welcome to the Phorum! :wave: Here's the schematic for that radio from our digital library: Something to do bef...klondike98 — 08:05 PM
Philco Model 38-7: what caps & resistors do fail typically?
Hi all, on vacation in Montreal,  a friend of mine showed me a Philco Model 38-7 console radio from the 30ies. Mechan...Musaeum — 07:21 PM

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

>