The compact, low-cost condenser mic audio amplifier described here provides good-quality audio of 0.5 watts at 4.5 volts. It can be used as part of intercoms, walkie-talkies, low-power transmitters, ...

I recently had the opportunity to build a lavalliere microphone. The goal is to have a lavalliere microphone drive a small audio amplifier with an appropriate signal level. Technically, the lavalliere ...

New from AKG are the C-Series Professional Condenser Microphones. With microphone design excellence dating back to 1947, AKG microphones are recognized as being among the finest in the world and are ...

Fig. 1: Diagrams from Wente’s 1916 patent application show the condenser microphone in cutaway view. Diaphragm (#6), which is grounded, is stretched only 5/10000th of an inch from the backplate (#7), ...

The 21st-century has been good to the player who wants to record their electric guitar. For a while now, we have had the option of going direct, sending the signal through a guitar audio interface.