Hello DK7FC,

Wednesday, November 21, 2018, 2:06:53 PM, you wrote:

> Hi Chris,

> Yes i published it on Dropbox a few years ago but i think the link 
> doesn't work any more. I attach the two images here, the size is small
> enough.

> 73, Stefan

Thanks  for the schematics Stefan! Do you know exactly what toroid you
used (assuming it is a toroid) for the gate driver transformer please?
Would  the  output level of the Si chip in a QRP Labs U3S be enough to
drive  this  amp  direct?  I  do not fully understand what the BF862 /
6N136   and   10K  pot  do,  would mind just explaining that bit about
duty cycle please?
Thanks :)

-- 
Best regards,
 Chris                            mailto:[email protected]