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Easy Power supply for cassette player

2015-03-18 11:05  
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This circuit that you see, It is an one style of an easy simple power supply, for a recorder or a cassette player in the car which used voltage 12V.It is only using the current abount 100mA.
When it occured over load current at output.it will not damaged with circuit.(have only current 2Amp) While it can to used the voltage about 6Volt at 800mA max.
The resistance of R1 serves to limit the short circuit current at about 2 amps.And reduce the power consumption of the series regulator transistor Q1.(which acts as the emitter follower circuit with a base voltage from R2, D1).
Here is the diode resistance should be 1 watt or more.

Easy Power supply for cassette player

This circuit can be assembled into a small metal box, compact, easily. Using the heater box as cooling plate to transistors Q1 with built-in.
Designed by Mr. Enrich Reading Ford. Palmerston North City Seal Post Teen & Air UK.


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