[Boatanchors] Navy RAL Filament Voltage: Solved

Rob Atkinson ranchorobbo at gmail.com
Mon Mar 19 05:54:50 EDT 2018


I shotgun out those micas among other parts when I'm working on a rig.
Not worth the repeated trips to the bench every time one goes, and
they will sooner or later.  At least half leak off the bat.

73

Rob
K5UJ

On Sun, Mar 18, 2018 at 8:32 PM, Joe Connor via Boatanchors
<boatanchors at mailman.qth.net> wrote:
> Thank you to all who responded to my request for help yesterday. I just found the problem that caused my heater voltage to hover around 4.8VAC, not 6.3VAC.
> There are four RF bypass caps on the heater circuit for the detector tube. They're .01 caps listed as molded micas. On mine, one was shorted. Once I disconnected it, I had the proper heater voltage. Needless to say, I'll replace all four of these caps.
> Again, thanks for all the advice.
> Joe Connor
>


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