|[AMRadio] 75A-2 power consumption|
ka1kaq at gmail.com
Thu Feb 19 15:51:12 EST 2009
I thought it was closer to 90v to fire that tube, Brian - maybe I'm
mistaken. I'd run it up at least to there, if the tube is dead, it
won't conduct so it matter.
~ Todd, KA1KAQ/4
On Thu, Feb 19, 2009 at 3:08 PM, WA5AM <ars.w5ami at gmail.com> wrote:
> Hi All,
> I have a friend in Oregon that I'm trying to help via email, who is bringing
> his A2 up slowly with a variac, after being stored for about 12+ years.
> Anyone know what he should expect to see in regard to current draw on the AC
> ammeter built on the Variac? He is at 75 volts now with very little draw,
> filaments on, and dial lights glowing. I suspect the B+ rectifier (5Y3, I
> think) should be conducting at this point too. When he gets to a full 115
> volts, what should he expect to see on the ammeter if all is well.
> Brian / wa5am
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