[Amps] SB-200 Low output power on 80M

[Phil Clements]

> Subject: [Amps] SB-200 Low output power on 80M
> 
> I have an SB-200 that putting out less than expect power on 80M. Tuning
> was done in accordance to Heathkit's instructions....basically for
> maximum smoke and reduce the drive a bit if the grid current goes over
> 100mA. I expected the RF output power to be equal to or great than the
> power output on 40M and 20M, and then start falling off as you go higher
> in frequency. This has been my experience with other amplifiers with a
> pair of 572B tubes.

Try tuning for maximum smoke, then increase the loading to bring the Ig down
to < 100 ma.

(((73)))
Phil, K5PC