It is all too often necessary to augment the power supply of an existing electronic circuit because exactly the voltage that you need is missing. The circuit presented here may provide a solution in...
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Wednesday, 22 January 2014
Sunday, 19 January 2014
Touch-Select Audio Source
Often you need to connect output from more than one source (preamplifier) such as tape recorder/player and CD (compact disc) player to audio power amplifier. This needs disconnecting/connecting wires...
Motorcycle Battery Monitor
A circuit for monitoring the status of the battery and generator is undoubtedly a good idea for motorcyclists, as for other motorists. However, not every biker is willing to drill the necessary holes...
NiCd Battery Charger
The design of the charger is similar to that of many commercially available chargers. The charger consists of a mains adaptor, two resistors and a light-emitting diode (LED). In practical use, this kind...
Friday, 17 January 2014
LG G3 release date tipped for as early as May
Does it make sense for LG to launch the sequel to the LG G2 less than a full year after the flagship was announced? Probably not, but crazier things have happened in the mobile industry. Buzz out of...
Tuesday, 14 January 2014
Car Temperature Gauge
The Car Temperature Gauge is basically the same circuit as March's project with some minor changes to the input circuit. This circuit will display the water temperature to 1 degree resolutio...
Maximum Minimum Voltage Indicator
This circuit indicates which of three voltages in the range from about about -4V to about +4V - at A, B and C - is the highest by lighting one of three indicator LEDs. Alternatively, it can be wired...
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