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Old October 16th 07, 08:53 PM posted to rec.radio.amateur.boatanchors
Nelson Gietz Nelson Gietz is offline
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First recorded activity by RadioBanter: Jan 2007
Posts: 25
Default Paper capacitor recap opinions?


"SX-88" wrote in message
...
I am in the process of recapping one of my receivers that uses many 0.05

MFD
paper caps. Since 0.05s are not READILY available, I am split equally on

the
following:

1. Do I recap using the more readily available 0.047
MFD caps even though they are of less capacity
than the original? OR...

2. Do I recap by paralleling readily available
0.022 and 0.033 for a total capacity of
0.055 MFD?

If I do the 0.047 replacement I am violating the
rule I have had beaten in to me about NEVER allow a capacitor to be of

LESS
capacity...but when they are
higher it is OK. However 0.047 MF is only 0.003 MFD
off the target 0.05 MFD value whereas the "safer" higher parallel
combination (0.055 MFD) is 0.005 MFD higher than the target capacity.

Thoughts? My receiver uses a lot of the 0.05s so it is not like I

only
have one or two to consider.

Thanks for any help.

Gary

Gary,
Personal opinion here... I wouldn't hesitate for a heartbeat
to put in the .047s. They're well within the manufacturer's margin
of error in any case. And single .047s are much cheaper and
better looking than a bunch of paralleled caps.
Also... personal opinion as well, I've intentionally used much
smaller caps than OEM in some circuit locations, such as line
bypasses.
Cheers,
Nelson