Industrial M26542/8-01 (M101) Dynamic Microphone from Sonetronics, a USGI microphone assembly used in military and industrial communications gear. This 150-ohm dynamic microphone is specified under MIL-PRF-26542/8-01 for M-116 /G and M26542/8-01 assemblies. In official catalogs it is listed as M26542/8-01 (M101), with NSN 5965-01-277-8589.
