Icom Hm 12 Microphone Schematic. 8 vdc, supplied by radio: Dimensions (whd) 54 x 86 x 32 mm / 2.1 x 3.4 x 1.3 inch;
Buit in ptt push button. Dimensions (whd) 54 x 86 x 32 mm / 2.1 x 3.4 x 1.3 inch; Click on a date/time to view the file as it appeared at that time.