Posts Tagged 'Radio'

Radio Remote Control using DTMF

H ere is a circuit of a remote control unit which makes use of the radio frequency signals to control various electrical appliances. This remote control unit has 4 channels which can be easily extended to 12. This circuit differs from similar circuits in view of its simplicity and a totally different concept of generating [...]

3 July 2009 at 02:53 - Comments
peter
Base Engineering is doing a great job on radio remote controls. BASE Engineering is known throughout the world for providing ...
13 January 10 at 16:10

Build A One Transistor FM Radio

If the radio is wired correctly, there are three possible things you can hear when you turn it on: 1) a radio station, 2) a rushing noise, 3) a squeal, and 4) nothing. If you got a radio station, you are in good shape. Use another FM radio to see where you are on the [...]

28 June 2009 at 16:29 - Comments