electronic circuit link

1. Simple Adjustable Voltage Source
2. Low Voltage, High Current Time Delay Circuit
3. LM317T Voltage Regulator with Pass Transistor
4. Interfacing 5 volt CMOS to 12 volt/ 25 Watt Loads
5. High Current Regulated Supply by LM317
6. High Current Power Regulator 12Volt 30Amp by 7812+2N3055
7. CMOS Toggle Flip Flop Using Push Button
8. 9 Second LED Timer and Relay Circuit
9. 9 Second Digital Readout Countdown Timer
10. 3 Transistor Audio Amp (50 milliwatt)
11. Thermistor
12. 2 Cell Lithium Ion Charger
13. Battery Check procedures
14. Salt Water Battery
15. Simple but reliable car battery tester
16. Nite Rider Lights
17. 12V to +-20V converter (for audio amplifier)
    

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