Hi Rich!
Merry Christmas! I found the old 509 files! I have several articles
with "lost info" regarding that rig, many really good mods and good
insights into making that rig work very well.
My advice - don't just replace the 4 pole filter with an 8 pole filter.
You will still have lots of blowby and funny imd products as I recall.
I have several articles that I can photocopy for you to explain this.
The "hot" setup is to find a spare 4 pole SSB filter (lots of old
Corsair and Argosy 4 pole filters lying in some guy's drawer, get them
for $20 if you can!) You place the new 4 pole filter in a different
part of the circuit to eliminate blowby and other products, it really
works well.
I will photocopy the articles and get them to you. Give me your
address. Lets converse more when you get them. I think I want to find
an old 509 to restore now, you got a line on any more? :-) I will
look for one so that I can play "in parallel" with you on the 509, it
is always a bunch of fun. Then again, I have a half built K2 here that
I just haven't taken up in nearly 2 years. Aaaack.
Clark
WA3JPG
Clark Savage Turner, J.D., Ph.D.
Associate Professor of Computer Science
Cal Poly State University
San Luis Obispo, CA. 93407
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