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Automotive 0v to 12v InPowered Indicator

Automotive 0v to 12v Electrical Voltage Indicator using 74HC04, 74HCT04

Integrated amplifiers

Integrated amplifiers using stk439 Integrated amplifiers using stk439 Integrated amplifiers R 1 ……….. 2 K 2 R 2,4 ……… 220 K R 3 ……….. 390 K R 5 ……….. 100 R 6 ……….. 120 R 7 ……….. 12 K R 8 ……….. 10 C 1 ……….. 470 pF C 2 ……….. 100MF/50V C 3 ……….. […]

Circuit Audio using TEA2025B

Circuit Audio using TEA2025B Circuit Audio using TEA2025B

Leds dimmer circuit and alarm circuit

Leds dimmer and alarm circuit using CD4066

The Audio preamplifier with dual recording

The Audio preamplifier with dual recording using IC BA3420AL. The Audio preamplifier with dual recording using IC BA3420AL. It has an internal switch for switching between playback head, mic and radio input modes, and also includes a bias oscillator and regulated voltage source for radio use. All control is possible with one external switch, allowing […]

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