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Spectrum Analyzer

3 Channel Spectrum Analyzer using LM3900, AN6884 3 Channel Spectrum Analyzer using LM3900, AN6884 Parts: R1 100K 1/4W Resistor R2 820K 1/4W Resistor R3, R14, R16, R18 2.2 Meg 1/4W Resistor R4, R5, R6 22K Pot R7, R8, R9, R25, R27, R29 10K 1/4W Resistor R10, R11, R12 680 Ohm 1/4W Resistor R13. R15, R17 […]

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 […]

LM555 Chip timer part 7

LM555 Chip timer part 7

Making Adaptec USB converter in the DVD player

Adaptec USB converter in the DVD player using the FT232BM, MAX3100cpd, PIC16f84, 93c46 The FT232BM requires a small number of external components.

High Power Amplifier circuit for YOU

High Power Amplifier circuit for YOU High Power Amplifier circuit using TIP3055, BD140, BD139, BC546 350 Watt High Power Amplifier for multiple Custom Home Audio Distribution and Home Theater Applications. A power amplifier can exert control over the loudspeaker and reduce ringing. Damping is the ability of a power amplifier circuit to control loudspeaker

Stereo Power Amplifier

68W Power Amplifier schematic   68W Stereo Power Amplifier using TR A673, C828, C1213, D438, B560, TIP31 and TIP32

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