[Elecraft] Fwd: Sudden Loss of Power

[Gary Thomas]

--- Gary Thomas <assetprotection at yahoo.com> wrote:

> Date: Sun, 13 Feb 2005 18:13:08 -0800 (PST)
> From: Gary Thomas <assetprotection at yahoo.com>
> Subject: Sudden Loss of Power
> To: elecraft at mailman.qth.net
> 
> Recently completed k2 4524 and it worked like a
> champ.
> Recently fired it up and there was no output. Altho
> the out put showed a constant  .4 (point four) watts
> 
> and could not be increased.  Upon turning the rig
> over
> I discovered that a  nut had fallen off one of the
> finals heat sink.  I removed the heat sink cover and
> checked the voltages on Q7 and 8 which were ok.
> However the emitter voltage on Q6 reads 1.6 instead
> of
> .4 and the base reads 1.2 instead of 1.1. 
> R 50 checks out ok... Any thoughts.?
> 
> Thanks
> gary ...aa1ue
>