[R-390] PD-1 SSB rececption, AM effects

[R390rcvr@aol.com]

Good morning crew:

I just got a PD-1, the outboard product detector sold by Ron Haskins. Nice, 
professional looking unit, construction very tidy internally.

No brainer hook up, just patch cord off IF output on back apron, plug it in, 
and go. 
The SSB is wonderful, very simple. Might be nice to have slightly finer 
tuning on the KC dial to fine tune voice pitch, but overall, it is really 
nice.

The down side is that it tends to overload just slightly on very strong AM 
signals. I am talking about signals that peg the carrier needle. I am running 
it through an Alpha Delta VRC console, basically an amplified speaker with 
notch, peak, variable freq. response, etc. Its possible that the two don't 
work well together.

I am going to hook it up to an outboard stereo amp and check that. I thought 
perhaps I had a problem in my AGC, so will sub out the three tubes, one by 
one, and see if that might help as well.

Its interesting that the Lankford mod seems to have the same AM problem.

I will keep you updated.

Randy Stout