[R-390] SE-3 Synchronous Detector question

[frankshughes at aim.com]

Hi 

I want to add a Sherwood Engineering SE-3 Synchronous Detector to my 390A. 
Rob @ Sherwood sent me some schematics about mods needed to improve performance w/ the Synchronous Detector.


Anyone here had experience using the Sherwood SE-3 w/ a 390A?

Are the AGC and current regulator mods really necessary or not for the Sherwood to work properly?

(It's not completely clear to me if the current regulator mod he sent pertains to the 390 or the "A" or both,
the schematic references R390 current reg RT510)

Thanks,
Frank

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