MIL-R-11539B, MILITARY SPECIFICATION: RADIO SETS, (NON-TACTICAL RADIO EQUIPMENT) (COMPONENTS OF) (07 NOV 1958) [NO S/S DOCUMENT]

MIL-R-11539B, MILITARY SPECIFICATION: RADIO SETS, (NON-TACTICAL RADIO EQUIPMENT) (COMPONENTS OF) (07 NOV 1958) [NO S/S DOCUMENT]., This specification covers the following major components of non-tactical radio equipments operating in the frequency range of 25 to 50 mc and 152 to 174 mc.