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Posts tagged tube amp doctor

Tube Audio Amplifier Circuit

Tube Audio Amplifier Circuit using EL34, 6SN7, 12AX7

How the principle of data and program memory ic robot ?

This chapter is partly tutorial and partly technical, and additional references to document the background of digital electronics. The information presented here should be considered optional, because it does not really need to know to build a robot. Hopefully though, this chapter will satisfy most readers’ curiosity about how the hardware works Lego Robot. The […]

Electronic circuit diagram audio amplifier AN7177 18w

Electronic circuit diagram audio amplifier AN7177 18w

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 […]

Battery Charger Circuit 12V to 1.2V

Battery Charger Circuit 12V to 1.2V using MAX713, MC33171, LM2904, NTE2904

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