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Posts tagged Lichter

Electric Circuit Diagram light flash using NE555 and 2N3055

Electric Circuit Diagram light flash using NE555 and 2N3055 Circuit Diagram uses a 555 timer IC working as an astable multivibrator. The flashing rate can be varied from very fast to a maximum of once in 1.5 sec by varying the preset VR1.

Sensore Audio Switch circuit

Sensore Audio Switch circuit Diagram using MC2830

LCD Modules circuit

LCD Modules circuit HD44780 based LCD Modules circuit

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 […]

Making VCO for MF-HF-VHF

It is a simple Colpits oscillator, but it has a 78L05 5v regulator (not shown) as the supply feed. The 22K and 33K resistors bias TR1 emitter to about 3v DC, which means that TR1 emitter can feed the CD4040 counter input directly when the synth is fed from a 10 volt supply. This is […]

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