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Portable Mic Pre-amp 2 transistor

Portable Mic Pre-amp 2 transistor using BC549C, BC547B

Geophone Detector Circuit

Geophone Detector Circuit using LMC6462

Delay to switch protector circuit

Delay to switch protector circuit using SL100, BC108

circuit city price protection

circuit city price protection using L6203, TL5106-05

3000W Inverter

3000W Inverter Parts list: R1=10Mohms R2=100ohms R3=1.2Kohms R4=560Kohms R5-6=2.2Kohms R7-8=56 ohms 5W CX=22pF trimmed capacitor C1-2=22pF ceramic C3=8.2nF 100V MKT c4=10uF 16V C5=47uF 16V C6=470nF 400V D1=5V6 0.4W D2-3=47V 1W Q1-2=BS170 Q3-4=BD139 Q5-6=BD249 IC1=4060 IC2=4013 IC3=4047 CR1=3.2768 MHZ crystal T1=220Vac/2X10V 2X2.2A F1=5A Fuse F2=0.25A Fuse L1=1H smoothing choke 1. Advanced Energy Flow Management for lowest […]

Guitar Amplifiers

Guitar Amplifiers 12v High Power Amp for Guitar 12v High guitar amplifiers

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