FREQUENCY METER, AN/URM-79 (FSN 6625-668-9749)
FREQUENCY METER TS-186D/UP (FSN 6625-930-7203)
FREQUENCY METER, TS-186D/UP (FSN 6625-93
FREQUENCY SELECTIVE LEVEL METER AN/USM-490 (NSN 6625-01-138-3351)
FREQUENCY SELECTIVE LEVEL METE AN/USM-490 (NSN 6625-01-138-3351)
FREQUENCY METERS, AN/USM-159A AND AN/USM-159B (NSN 6625-00-892-5360) (EIC: KRD)
FREQUENCY METER, TRACOR MODEL 527A (NSN 6625-00-
FREQUENCY EXTENSION UNIT, WEINSCHEL, MDL 1611 (NSN 6695-01-207-2922)
