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BTL – STEREO TO MONO DRIVER Audio

BTL STEREO TO MONO circuit, DRIVER bridge a stereo power amp to mono USING C828 the BTL power amplifier system is: “Two power amplifier units connected by bridge joints can form a larger power amplifier. The amplifier system is in English called Budge Transformer Less BTL. This amplifier system can amplify the amplifier noise by […]

Audio Filter Circuit without voltage

Audio Filter Circuit without voltage Audio Filter Circuit without voltage

Led Strobe

6v led strobe circuit using CD74HC4017 and MM74C14 6v led strobe circuit using CD74HC4017 and MM74C14 Led Strobe 1 IC1 MC14584BCP IC2 CD74HC4017N T1 2N3904 or 2N4401 NPN transistor 8 D1 to D8 1N4148 or 1N914 Diodes 10 LEDs Blue, green or white Ultra-Bright LEDs with Vf = 3.2V or less at 20mA 1 R1 […]

battery charger schematic

Dry Cell battery charger schematic using LM741, 4011, BD139, BC548

RF preamp Circuits

RF preamp Circuits using CD4007. RF Preamp properly tune CD4007 Audio Preamplifier Circuits and Design Guidelines for Bipolar

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