[Elecraft] Problems on 40M with 100 watt section

[Vic Rosenthal]

Rich McCabe wrote:

> Time to search the archives. Any comments would be appreciated.

There is a possible problem with some of the resistors that have been
supplied for R19/R20 having a larger than usual inductance; and also
some capacitors at C80/81 being at the low end of tolerance.  This
causes the KPA100 to require much more drive on 20/30/17 meters.  You
will see normal current draw at 10 watts, but when you have the
amplifier set for 100 watts the driver current will be higher, and it
won't be possible to get full power out.

Gary Surrency <gary at elecraft.com> has dealt with this problem and can
make suggestions.

Good luck,
-- 
73,
Vic, K2VCO
Fresno CA
http://www.qsl.net/k2vco