[Collins] Product Detector for the 75S-3

[Stu Martin]

I have a scanned copy of Carl Ebhardt's, (W4HJZ) article from CQ Magazine, 
1966. CQ unfortunately miss-titled it "A Product Detector for the 75A-4," 
but as we all know the 75A-4 has a product detector. This led to my 
curiosity. After reading Carl's paper you'll catch the error. [It's for the 
'A-3, but not sure about the 'A-2] Just a quick email and I'll respond with 
the PDF file. I'm sure Carl would love to here from anyone using his 
creation 40 years later.

Stu, k2qde