Muscular Bio-Stimulator
Parts: P1______________4K7 Linear Potentiometer
R1____________180K 1/4W Resistor
R2______________1K8 1/4W Resistor (see Notes)
R3______________2K2 1/4W Resistor
R4____________100R 1/4W Resistor
C1____________100nF 63V Polyester Capacitor
C2____________100µF 25V Electrolytic Capacitor
D1______________LED Red 5mm.
D2___________1N4007 1000V 1A Diode
Q1,Q2_________BC327 45V 800mA PNP Transistors
IC1____________7555 or TS555CN CMos Timer IC
T1_____________220V Primary, 12V Secondary 1.2VA Mains transformer (see Notes)
SW1____________SPST Switch (Ganged with P1)
B1_____________3V Battery (two 1.5V AA or AAA cells in series etc.)