[Elecraft] Receive Problems

[Ken Wagner]

Gregg Lengling wrote:

>I've got a Rev A K2 (#529) that a friend brought to me to upgrade to all the
>Rev B mods ect.  Before I did the mods I fixed some problems....low audio
>out (bad solder joint) and other minor probs.  So before I started the
>upgrades it was working.
>
>Here's the problem now.  The radio works great except for the following on receive:
>Very low recovered audio and low S meter reading................
>	I'm looking in the preamp/mixer and receive VFO area....I found on
>the VFO (Q18) the original owner put another 1N4148 on the bottom of the
>board across D13 in the opposite polarity....was this something I didn't
>hear about (with or without I still have the problem).  I've checked the
>voltages on the VFO and Buffer and the preamp and everything looks good.  So
>does anyone have some ideas.
>  
>
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Hi Gregg:
I'd take a close look around the post-mixer amp (Q22).... looking at 
R82, RFC11, in particular.
73 & GL
Ken Wagner K3IU