[Elecraft] K3 and Alpha 91b

[Roy Morris]

Mike,
I have two K3s driving two Alpha 99s.  I drive the 99s with 38 watts from the K3s to get 1500 watts on 75 meters.  The Alpha 91b is virtually the same amp as the 99 but without two of the WARC bands.   You should have no trouble faults with the Alpha 91b if you are using an antenna tuner on the output of the 91b with a 1:1 SWR.  If your amp is showing more than 200 watts of reflected power it will kick out.  Roy Morris  W4WFB