[Boatanchors] Looking for Hickook 605A Transformer
w_b_morton at hotmail.com
Mon Feb 28 18:12:06 EST 2011
I was having a trusted tech go over my Hickok 605A as the filament voltages seemed low when I tested some sample tubes. Hiis initial findings were that the internal tubes were fine, sections matched on the 83 tube, previous owner (or earlier tech) did some maintenance/repair but showed good workmanship, etc. No obvious signs of shenanigans.
I received the following update today:
the LINE SET control had to be turned fully CCW
to get the needle to read on the 'line' mark (actually, just above it - you
can't actually hit the mark). In this position, filament and signal
voltages are WAY low - e.g. 6.3V filament reads actual 4.9V. However, if
you ignore the mark and rotate the LINE SET control until the filament &
signal voltages are proper, then the plate & filament voltages for the #83
& 5Y3 tubes skyrocket.. 5V filament on the #83 reads actual 7.5V.
He will work with it some more to confirm, but I would like to look for a replacement transformer in the meantime.
Anybody have one? Anybody have this type of problem before?
Thanks in advance for your support.
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