(MIC) 57A120D1 Microphone adapter and Freed audio transformer. 300 - 20,000 ohms. Includes shield box plus 4 pin flange mount female jack (MS3102A14S) mating with 4 pin inline male (MS3106A14S). New surplus. NSN: 5821-591-3786.
• Primary: 82 ohms, 50 ma
• Secondary: 100,000 ohms
• Dimensions: 2-1/8" x 2-3/4" x 1-5/8"H
(MIC) MX-175/U Army green headband wired for earphones with PJ-054 plug. Rubber headband supple, in excellent condition.
Magnetic Tape Head
(MIC) BK-1110 Brush 2 channel magnetic tape head.
*** SOLD OUT ***
McMartin Compressor /
Expander for Audio Console
(EQP) CM-2001 McMartin compressor / expander for audio console.
600 ohm in / out. New in the box. Just a few left.
(EQP) LR-1010 McMartin Universal talkback amplifier is designed
for two way voice communication between two speaker stations and a third handset. Works
or 70.7v lines. 600 ohm. 1-3/4" high rack width, 7-1/4" deep. Runs on 120
vac or 24 vdc.