[Collins] 75A2 / 75A3 mixer modification

[Dr. Gerald N. Johnson]

On Wed, 2006-06-28 at 05:19 -0700, C E wrote:
> Jim:
> What is your take on the modification? Good, bad, or
> ugly? 
> 
> Cal,N6KYR/8

The ham radio magazine article by W6Z0, Ray Rinauldo for the 'A4 said it
reduced the receiver NF 3 dB in 10m, lowered the overall gain a bit, and
increased the 20m blocking limit from 13 millivolts to 60 millivolts
giving a blocking range of 85 dB after. It was 72 dB before. He also
made some changes to the gain in some voltage divider or two to further
reduce the gain.
-- 
73, Jerry, K0CQ, Technical Advisor to the CRA
All content copyright Dr. Gerald N. Johnson, electrical engineer