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AM Transmitter - The circuit is in two halfs, an audio amplifier
and an RF oscillator. The oscillator is built around Q1 and associated
components. The tank circuit L1 and VC1 is tunable from about 500kHz to
1600KHz.… [Andy Collison]
An Improved Infrared Receiver with Status LED (Billy's Plug) -
This is the latest version of the Improved Infrared Receiver with Status
LED which can control any desktop PC with an ordinary remote control. The
project comes along with a small PCB in order to save space. It connects
....