[Elecraft] KPA100 T-R switch

[Don Wilhelm]

Gil,

The power handling capability is limited by the reverse bias voltage applied
to the switch, which is about 120 volts under load - so the power limit as
implemented in the KPA100 is only about 120 watts.

You would need a bias voltage in the neighborhood of 300 volts to handle 400
watts, and the switching MOSFETs must also be capable of handling that
voltage.

73,
Don W3FPR

> -----Original Message-----
>
>         Anyone have an idea of just how much power the T-R sw. in the
> KPA100 would handle over the 100 watts it is handling . 300 -400 watts?
>
>                 Thanks    Gil    K8EAG
>