tube coils

• To: tesla-at-pupman-dot-com
• Subject: tube coils
• From: Parpp807-at-aol-dot-com (by way of Terry Fritz <twf-at-verinet-dot-com>)
• Date: Mon, 07 Dec 1998 19:39:05 -0700
• Approved: twf-at-verinet-dot-com
• Cc: FutureT-at-aol-dot-com

John Freau

John,

Tnx for the tube circuit. Have you ever tried a paralleled pair of 838
triodes? These
oldies have a huge graphite plate and require a JUMBO 4-pin socket. In the
works
is a TC based on a  Popular Science article from January, 1946. It uses
parallel
10's and any husky power transformer. I will try other triodes down to 45's
and up
into the 811-833A range. Tube costs and their availability being as it is, I
now run
all my tube stuff with a variac on the filaments. It's russian roulette to
apply full
voltage to a
high amperage filament from a cold start. I do not have a scanner. I'll gladly
fax you
the pop sci article if you can give me a fax number. Thanks again for the
help. ZEKE

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