[1000mp] Interface to Collins 30S1

[Paul Baldock]

At 01:04 PM 1/7/02 -0600, you wrote:
>I have a Collins 30S1 and when I looked at the ALC requirements I found that
>the 30S1 ALC output is a positive voltage and the ALC of the TS950 was based
>upon a negative voltage input. I did think about replacing the tube dual

The 30S-1 output is actually negative. Check the schematic you will see the 
Anode of CR218 connected to the ALC output and the cathode of CR217 
connected to Ground.

Paul - KW7Y