[R-390] sp-600-jx-17

[Todd Bigelow - PS]

Llgpt@aol.com wrote:

> Try replacing the OA2 voltage regulator tube, a weak one will cause drift.
> Also, look at the bottom of the power supply transformer, if your voltage is
> over 117 volts, I would suggest moving it to the 139 volt tap.

This is some of the best advice I ever got on here, mainly because it was so
*easy* and it made such an improvement.

Les, I still can't thank you enough for the tidbit about checking the transformer
taps - what a difference it made for me.

73, Boomer  KA1KAQ