[sdiy] capacitor ID please

epeasant at telusplanet.net epeasant at telusplanet.net
Fri Jul 5 18:34:55 CEST 2002


This is a standard multiple section electrolytic capacitor, 
as was commonly used in tube gear. This unit has three 
separate 40 mfd 400 working voltage capacitors and one 200 
mfd 50 volt capacitor all jammed inside the can. The icons 
correspond to the connection pins for each section. The 
best way of checking it would be with an esr meter. This is 
the main power supply filtering for the amplifier, so if it 
was defective you would get lots of hum and distortion from 
the amp. You could replace it with four separate capacitors 
of appropriate values or you could try and obtain a similar 
multiple capacitor from a vintage parts dealer or on Eb*y.

Take care,
Doug
______________________
The Electronic Peasant

www.electronicpeasant.com

> in an old tube console stereo amplifier from the 60's i
> was surprised to 
> find only one large aluminum canister-type cap. it reads
> :
> 
> 40MFD 400WV (half-circle icon)
> 40	400	(square)
> 40	400	(triangle)
> 200	50	
> 1013	6137 FP
> "stereo 33" sticker on top of the canister
> 
> 
> what kind of cap is this? how do i determine if it needs
> replacing ? what 
> would be a good replacement ?
> 
> TIA
> mark scetta
> 
> 
> 







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