[Collins] 30L-1 and 756Pro III

Dr. Gerald N. Johnson geraldj at ispwest.com
Wed Mar 29 15:09:49 EST 2006


On Wed, 2006-03-29 at 12:16 -0500, Gary Franklin wrote:
> Can the 756 Pro III  be connected directly to the 30L-1.  The 756 Pro 
> requires 0V to -4V ALC, no positive voltage, and the send relay is 16V at .5 
> amp
> 
> Gary  K8BKB 
> 
The ALC output is negative going, but probably stronger than 4 volts.
The keying circuit is about 120 volts negative. Will fry the 756 Pro.
Has to be relayed.
-- 
73, Jerry, K0CQ, Technical Advisor to the CRA
All content copyright Dr. Gerald N. Johnson, electrical engineer



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