[Heathkit] DX-60 Problem

[Glen Zook]

Actually modern electrolytics are about 1/4th to 1/5th
the physical size of the older capacitors and are much
closer in tolerance to the stated value.  Even those
of a higher voltage rating are going to generally be
considerably smaller in physical size than the
originals.

One thing that I have found in replacing paper
capacitors in receivers that were manufactured during
the 1930s is that sometimes I have to place a high
value resitor (over 1 meg) in parallel with new
capacitors to get the circuit to operate properly.  It
seems that the original leakage of the capacitor
figured into the circuit design!

Glen, K9STH


--- Robert & Linda McGraw K4TAX <RMcGraw at Blomand.Net>
wrote:

My experience is that electrolytics dry with age and
the MFD value will decrease.  Anything over say 20+
years should have the electrolytics replaced with
equal value and equal voltage units.  Don't increase
the value of the C too much.  A higher value voltage
rating is OK if you have the space as they are
typically a bit larger in size.












Glen, K9STH

Web sites

http://home.comcast.net/~k9sth
http://home.comcast.net/~zcomco

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