Multi Section Cap....diy?

redrabbit · 20th July 2007, 09:32 AM

My old Hallicrafters multiband receiver (S-40A) ......the only thing it does now, is make a wonderfully loud hum/tone....sounds like 60 kHZ.

I am assuming it is the multi section cap , gone bad.

30-10-10 @ 450v

Can I build my own with separate caps ??
Do all the neg terminals go together, and the positives go to the circuit?

=RR=

Colt45 · 20th July 2007, 09:37 AM

Damn, good ears if you can hear 50kHz...

Yeah, seperate caps are fine..

nhuwar · 20th July 2007, 04:26 PM

You want the negative lead of one cap to the positive lead of the other cap you want in series with it.

Nick

kevinkr · 20th July 2007, 04:58 PM

Quote:

Originally posted by nhuwar
You want the negative lead of one cap to the positive lead of the other cap you want in series with it.

Nick

Use 450V caps and all negative leads get tied together, no caps in series. Better still order a similar valued replacement from AES at www.tubesandmore.com to keep it looking original. You can use 40/20/20 or 30/20/20 common values currently available.

I have restored a bunch of vintage sw/ham band sets in the past.
(Lately Atwater Kent 310)

Kevin

nhuwar · 20th July 2007, 06:02 PM

Ops!

I stand corrected Thanks Kevin

20th July 2007, 09:32 AM	#1
redrabbit diyAudio Member Join Date: Oct 2004	Multi Section Cap....diy? My old Hallicrafters multiband receiver (S-40A) ......the only thing it does now, is make a wonderfully loud hum/tone....sounds like 60 kHZ. I am assuming it is the multi section cap , gone bad. 30-10-10 @ 450v Can I build my own with separate caps ?? Do all the neg terminals go together, and the positives go to the circuit? =RR=

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20th July 2007, 09:37 AM	#2
Colt45 diyAudio Member Join Date: Feb 2002 Location: Canada	Damn, good ears if you can hear 50kHz... Yeah, seperate caps are fine..

20th July 2007, 04:26 PM	#3
nhuwar diyAudio Member Join Date: Jan 2007 Location: Tomball Texas	You want the negative lead of one cap to the positive lead of the other cap you want in series with it. Nick

20th July 2007, 06:02 PM	#5
nhuwar diyAudio Member Join Date: Jan 2007 Location: Tomball Texas	Ops! I stand corrected Thanks Kevin

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