Equipment: AN/FRC-7A and AN/FRC-17A Radio Sets
Angled shank with locking ring mechanism
this model features Mossberg’s proven pump system and overbored barrel design for improved pattern performance
Case: Original hard clamshell case
WWII US Navy OBN Transmitter Monitor Oscilloscope Manual NAVSHIPS 900429 1945 T-shirts Equipment: AN/FRC-7A and AN/FRC-17A RadioOriginal World War II U. S. Navy Bureau of Ships instruction book for the Transmitter Monitor Oscilloscope, Navy Model OBN, manufactured by Allen B. Du Mont Laboratories, Inc. Published as NAVSHIPS 900,429 and approved May 21, 1945, this technical manual covers the description, installation, adjustment, operation, and maintenance of the OBN transmitter monitoring oscilloscope. The contents include pulse shape interpretation, frequency drift