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Posts tagged Voltage

Variable Power Supplies

Variable Power Supplies circuit using 2N3906, LM317, LM337, LM324, MJ2955, 7805, 2N3055, 2N3905 Parts: P1_500R P2_10K R1,R2_2K2 R3_330R R4_150R R5_1R C1_3300µF C2_1µF D1,D2_1N5402 D3_5mm Q1_BC182 Q2_BD139 Q3_BC212 Q4 _2N3055 T1_220V Primary, This Variable Power Supplies circuit has a current limit feature, in case there is a short circuit or other problem places. Here’s a circuit […]

Electronic Components TA8445K Vertical deflection circuit

Electronic Components TA8445K Vertical deflection circuit

Volume control circuit for audio amplifier

Audio Gain master stereo Volume control circuit for audio amplifier using TL072   Gain audio input layout

Overload Indicator and overvoltage protection schematic

Overload Indicator and overvoltage protection schematic

FM wireless microphone for the President’s speech

FM wireless microphone is very simple to build and has a useful transmission range (more than 300 meters in open air). Although a small component count and 3V operating voltage it will easily penetrate more than three floors of an apartment building. This may be found anywhere in the FM band (87-108MHz) and transmission can […]

Audio Amplifier Circuit Using STK4162 II

Audio Amplifier Circuit Using STK4162 II

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