[MRCA] Paolo's article in ER this month on the R-390

[scottjohnson1 at cox.net]

I wonder if anyone caught Paolo's article in ER this month regarding detail
differences in the R-390 and R-390A?

I think one big reason the heater strings are 25.2V in the R-390(and R-389
and -391) is that there was at least a planned DC power supply module with a
dynamotor for 28 VDC operation.

Has anyone ever seen such a beast?  It also explains the GRC series 4 pin
input connector.

 

Scott V. Johnson W7SVJ/AFA6SJ

Sunburst Engineering

5111 E. Sharon Dr.

Scottsdale, AZ 85254

M (480) 550-2358

scottjohnson1@ cox.net

scott.johnson at ieee.org

 

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