HP-23 Question

[Charles W. Morehouse]

Hi Carl,
If you wish to keep the HP-23 as close to original use these. 140 mfd @ 450 v from Mouser # 539-CGS450V140 at $9.44 ea. You will need the mounting bracket # 539-VR3 at $.83. These caps drop right in using the same mounting holes. Have restored several of mine and they work and look great. The same cap
is also used in the Apache. Recommend that you replace both. Luck and 73's.
Wayne;
W4GBW

Carl C. Miller Jr wrote:

> Hello All,
>
> I am replacing one of the electrolytics in the high voltage (800 volts) section of the power supply. I have two questions:
>
> 1) I could not find an exact replacement for the cap at my favorite electronics store. I found a 100uF at 450 volts and also a 27uF at 450 volts. The voltage rating on the original is 500 volts. Could I parallel the 100 and 27uF caps and would they work okay without exceeding their voltage ratings?
>
> 2) Since I am replacing one of the two voltage doubler caps with an inexact replacement, should I replace the other with the same parallel combination to maintain some balance in the doubler circuit, or is balance even a question?
>
> Thanks in advance,
> Carl
>
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