David Clark, Model M-7/DC Microphone, p/n 09168P-31
Pilot-USA, Conversion Kit for David Clark H10-76 Military to G/A usage, w/ PA-5X Mic, p/n PA-176
Pilot-USA, Direct Replacement Electret Microphone for David Clark M-4's, w/mic muff, p/n PA-5X
David Clark, M-7A Electret Microphone, p/n 09168P-33
David Clark, M-55 Microphone for DC-PRO-X Headsets, p/n 09168P-66
