[Collins] S line power requirements Help???

[Dr.Gerald Johnson]

Garey, this 32S-3 manual says load to 230 ma. Of course on SSB or CW once 
loaded the average DC is going to be less. But the radio does run RTTY and 
there the duty cycle is nearly 100%.

Perhaps a hint of the current capability can be had from the 5R4 high voltage 
rectifier and the 5U4 low voltage rectifier. Both good for something a bit over 
200 ma. I always think the low voltage current should be more like 100 ma (from 
AM exciter days), but if it was they would have used a 5Y3 for the low voltage 
rectifier to keep things cooler in the power supply.

73, Jerry, K0CQ, Technical Advisor to the CRA

-- 
Entire content copyright Dr. Gerald N. Johnson, electrical engineer.
Reproduction by permission only.