[AMRadio] 6HG8

Todd, KA1KAQ ka1kaq at gmail.com
Fri May 16 08:48:06 EDT 2008

Cant explain the behavior Jim, but the tube was used extensively in
60s-70s TV sets and 2-way gear, more often the later 6GH8A example.
Supposed to be a drop-in replacement for the 6U8, along with the 6EA8,

Maybe a dirty switch contact in your tube tester or something has gone
out of calibration between set and test?

~ Todd,  KA1KAQ

On Thu, May 15, 2008 at 5:27 PM, Jim Wilhite <w5jo at brightok.net> wrote:
> Is anyone familiar with this tube.  It is a dual pentode/triode and I have
> two of them.  Both exhibit a bit of strange behavior in my tube checker, a
> Western Electric KS-15650-L.
> When I set the checker for the pentode section the directions say to set the
> bias for 1 volt.  Then when I press the test button the bias jumps to 2.4
> volts.  The triode section checks correct.
> Does anyone have experience with this tube and can tell me if this is
> something particular to it?  In all my born days, I have never seen anything
> like this.  I would consider it a short, but the short test does not
> indicate thus.
> Jim/W5JO
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