Good Morning All,
Some many moons ago in a roundtable I had with OT friends W2UJR & KA9QLF, the
subject of using AC motor starting / running capacitors --- in place of
electrolytic capacitor "strings" --- in high voltage power supplies came up...
Both Dick and Steve stated that such a practice was frugal, effective, and
quite common in an earlier time, with the bonus being that the working AC
voltage ratings of such capacitors could be increased significantly in DC
applications --- upwards of some three-fold, if I recall correctly...
I have the notes of that QSO filed away someplace in my "rubble pile" here, & I
continue to look for the reference (it's all the more pressing for me now, as I
contemplate the construction of a new HV supply for another project).
What experience --- if any --- have members of this group had in this
regard...? And what is the multiplier factor that may be safely applied in such
instances...? I have a couple of nice, tall, NOS 33 ufd. / 330 VAC G.E. caps
here that I'd love to put to work, & I'm wondering what they might withstand in
terms of DC potential.
Thanks in advance, & my vy
~73~ Eddy VE3CUI - VE3XZ
PS: Both W2UJR and KA9QLF have (sadly) joined the ranks of SKs --- but through
natural causes, and NOT as a result of any P.S. mis-adventures...!
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