[Hallicrafters] sx101 subchassis
rbethman
rbethman at comcast.net
Sun Jan 13 12:28:36 EST 2013
FYI - Watch the 2nd Conv OSC, the 12BY7.
If the receiver is left on to maintain stability, this tube WILL become
weak.
Bob - N0DGN
On 1/13/2013 12:23 PM, Nash4447 at cs.com wrote:
> Just FYI since we are talking about subchassis parts. A couple years ago
> I restored a SX101 that was dead on the higher bands. I bit the bullet and
> removed the subchassis and found two things - there are no paper caps under
> the subchassis on the 101s BUT I found that the resistor feeding the plate
> voltage to 2nd osc, I think something like a 12AU7, was sky high in value,
> hence little or no B+ on the tube.
> Replacing that resistor with a 1 watt variety brought things back to
> life.
>
> Something for the memory banks
>
>
> Glenn K6PZT
>
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