Vintage microphone parts astatic d 104

Model 55 Series The Shure 55 is a unidirectional, dynamic microphone designed for high quality public address and broadcasting and recording of voice. They were particularly satisfactory as a soloist's microphone, however. Dynamic microphones use a diaphragm that has a voice coil attached. This voice coil can move freely over a pole piece that is mechanically mounted to a permanent magnet. As the diaphragm moves with the varying air pressure sound the voice coil moves up and down the pole piece in the magnetic field thus generating a small voltage across the voice coil. The voice coil output is connected to a small transformer that provides a voltage increase and impedance matching.
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A ’s Astatic D Mic in the 21’st century – a real baby boomer |

Woodworth, W8AHW began experimenting with different types of microphones for their "ham" stations. Their mutual friend, Charles Semple, worked for Brush Development Company where he had been experimenting with Rochelle salt crystals. Semple demonstrated some crystal pick-ups that Brush was working with, leading Chorpening and Woodworth to found The Astatic Microphone Laboratory, Inc. Semple was brought into the company as general manager to manufacture and market the company's model D Crystal Microphone as well as other crystal microphones, crystal phonograph pickups and recording heads. The company offers audio products for recording, live performance, commercial and personal audio, and is located in Solon, Ohio. DAS expanded the Astatic name to non-microphone accessories including coaxial cables, meters and antennas.
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Astatic D-104 Final Edition Silver Eagle Desk Mic Unopened

Before starting, verify each component works. Test the audio recorder using the internal or a known good microphone. Attach electret condenser to computer, referring to the manufacturer's datasheet for the wiring diagram. Use the alligator clips to connect it to the 3. Use your audio recorder to test it.
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The biggest issue is that the connector looks to be in need of repair, as it is missing a pin inside. Also, the microphone shows pitting, spots, scratches, and marks. Overall, however, it still doesn't appear too bad.
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