[Milsurplus] what is it & info

[JOHNGRU@aol.com]

I have aquired a test set, TS-1777/VRM-1..What radio set is it used with ?? 
(it appears to test modules in a txsceiver in the 39 to.... range)
any info appreciated.

off subject, but anyone have info, schematics, manuals etc for a Mark IV MHF 
transceiver manufactured in 1957...it is crystal controlled (both Tx &  Rx), 
has a transistorized power supply...no info on tube lineup, but i think the PA 
is either a 2E26 of a 6146 ( or possibly 12 or 28 volt versions).
any info appreciated, as i want to get it on the air on 40/20 meters..

TIA

73 & thanks   de john allen  w4gqt



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