[R-390] R-390 Digest, Vol 57, Issue 37

[Ed G]

Thanks for all the comments on using the Break-in switch on the 390A.  I may
just try using one of the old Johnson or B&W T-R switches and let the
receiver stay as-is (not use the Break-in switch)....unless I am risking
damaging something in the front end.
--Ed--