[Elecraft] K2 4115 is alive and well
Bud Rogers
[email protected]
Sun Apr 18 10:48:00 2004
On Saturday 17 April 2004 23:20, Benny Aumala wrote:
> This control board question sounds like what I have here.
> A crawling parasitic oscillation moving slowly upward on the band.
> You installed those resistors in wrong places or what? And swapped
> later ?
I swapped them during the initial build. R20 is 2.7 ohms at the output
of the audio amp U9. R21 is 270K at the input of the ALC amp U10a.
2.7 ohms there turned U10a into a nice little oscillator.
--
Bud Rogers <[email protected]>
KD5SZ EM05vb K2 #4115