[R-390] Was variacs, now bucking transformers...

[Dave Kamp, KW0D]

Okay, so I opened a big can'o worms over the variac/line voltage...  and
the bucking-transformer came up...


I've got a 1A SOLA here, that I've used on my HQ-140X, and found that it
cuts down power-line pops, clicks, and a 'little' drift (usually when the
AC compressor kicks on).

I can understand how it 'bucks' a change in voltage, but how does a
bucking-transformer prevent a 130v input from creating more than 115v output?

I haven't tested the SOLA on a variac, but I'll do that-  I'll sweep it
from 95 to 140 over a 5-minute span, and see what it outputs...  and if it
does, (and 1A is enough) I'll put it on the R390A...

Comments?

Cheers/73!
DK  :-)
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73's from KW0D Dave in LeClaire, Iowa