Posted by Bill Coleman-2 on URL: http://elecraft.85.s1.nabble.com/K2-100-watt-power-amp-fail-and-fix-tp7593539p7593759.html
On Oct 2, 2014, at 12:52 AM, paulb <[hidden email]> wrote:
> Hi folks
>
> thanks to historic user postings regarding the KPA100 amp
> loosing power control
>
> D17 shorted.
>
> Havn't got spares on hand so replaced D16 and D17 with
> stock 1N4148 which have a higher forward turn on voltage.
>
> Output checks seem ok and RF indication on the K2 looks
> normal.
I’ve had these diodes fail twice on my in my K2/100, so I’ve replaced them with machine-pin socket pins, so I don’t have to unsolder anything to replace them.