The mod applies to the ability to increase the sensitivity (gain) of the
amp by bypassing the input attenuator so that it can be driven to a
useful power output with a lower power exciter. There isn't any
suggestion that the amp should be driven beyond its normal power level.
Hence unless the exciter was dirty, clean signals is not part of the
equation.
Regards,
Mike VP8NO
18/06/2020 14:25, Phil Hystad via Elecraft wrote:
Why would you modify your KPA500 and risk warranty, repair, and clean signals
for a mere 1/2 S-Unit at best?
On Jun 18, 2020, at 9:27 AM, Gmail - George <[email protected]> wrote:
Paula Keezer NX1P modified a KPA500 to allow it to be driven to about 500
watts by a KX3.
She published it - but I can not find it on the web.
The mod increased the gain by less than 3 db (seems I recall 2.something).
You would need the 12 to 15 watts to drive it to about 500 watts.
______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[email protected]
This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to [email protected]
