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AutoScout Time Out with On Off Circuit

Automatic Time Out with On Off Circuit using 74HCT74, 4013

40 – 0 – 40 5A transformer Circuit diagram

40 – 0 – 40 5A transformer Circuit diagram The power supply should be capable of supplying the maximum current required with good stabilization. I used commercially available 40 – 0 – 40 5A transformer. The transformer have 6V, 9V, 12V and 22V windings also. The transformer cost me around Rs: 370. Power supply provides […]

Cell phone power supply schematic using 723 and 7812

Cell phone power supply schematic 2 – 7V 6/8A using 723, 7812, Tip 142, BD 139 Cell Phone Charger and Adapter Applications. This product is universal, portable and a rechargeable power for Power Bank Cell phone power supply schematic 2-7V 6-8A using 723 and 7812 Block diagram of Linear Regolated power supply. This simple usb cellphone […]

TV Circuit

TV Circuit with audio wireless FM This simple circuit using BF494 . Where audio receiver? he he ……………………..                 yes fm radio on your cell phone. Then wear head phones while seeing adult film let steady. Part: R1 100 kΩ       C1 4,7 nF        Q1 BF494 R2 33 kΩ         C2 Trimmer R3 22 kΩ         C3 47 […]

micro transmitter fm

micro transmissor fm circuit using bf49402 Simple 30 meters range FM transmitter using bf49402 BAT      3 – 6 volts C1     47nF C2     4,7pF C3     100nF CV1     3pF – 30pF T1     bf494 R1     2k7 R2     8k2 R3     5k6 R4     47

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