I've always felt that the KPA3 in my K3 was marginal.  For example, I've never been able to get more than about 80 W out of it on 15 meters. (And that's at about 14.5 V) Is the KPA3A any better?

73,
Scott K9MA

On 1/5/2019 15:23, Robert Friess wrote:
Hank,

The 2SC2782 is not internally matched and is the only part ever used in the
KPA3.  The KPA3A uses MOSFETs.

73,
Bob, N6CM

On Sat, Jan 5, 2019 at 11:04 AM HP <[email protected]> wrote:

Anyone know if the Toshiba 2SC2782 transistors used in the K3 power amp
have internal matching (mos cap and wirebonds ) ?

Or did the K3 power amp ever use Motorola MRF247 transistors ?


Hank K7HP

______________________________________________________________


--
Scott  K9MA

[email protected]

______________________________________________________________
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]

Reply via email to