Astatic 878 DM High Quality Amplified Ceramic Desk Microphone

The ASTATIC 878 "power" microphone offers the Radio Operator modern styling and features along with the sound and "talk-power" made famous by the ASTATIC D104 for over 60 years.      An output impedance compatible with the inputs of almost all commercial transceivers and externally adjustable high gain amplifier ensures desired modulation level. The 878 has easily accessible control for volume adjustment so that the correct modulation level can be set for each operators voice. The 878 preamplifier is powered by a readily available, easily replaced, 9 volt battery. The 878 has a six wire coil cord which allows for relay, electronic or virtually any type hookup with almost any transceiver.   Type: Transistorized Ceramic Output Level: -44dB Below 1 volt per microbar at 1 khz into 1 megohm load Output Adjustment: Approx. 40db range Impedance: 5000 Ohms Max., recommended load of 100 ohms and up Polar Pattern: Omni Directional Cable: 2 foot coiled 6 conductor including shield Weight: 19 1/2 ounces Power: 9v battery four pin connector wired for Cobra Uniden