[Amps] SB 221 filter capacitor replacement

Barry Norman bnorman at carolina.rr.com
Sun Feb 20 16:28:56 EST 2005


Hello all,

It's finally time for me to replace the original filter caps in my SB221. A
few questions:

1) Total capacitance with stock caps are 25uF (8 200uF in series), should I
increase capacitance to minimize voltage drop under load?

2) Are the 105C rated caps worth the extra few bucks over the 85C?

3) Are the different series choices only a reflection of the temp ratings or
are there other differences as well?

Note: I've already replaced stock equalizing resistors with 100Ks. Also
using a Peter Dahl replacement HV transformer.

Thanks for your suggestions,

Barry Norman KF4WGR




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