Universal motor control

  
When the time delay expires, SCRl conducts and removes the gate signal from SCR2, which stops the motor. Both the time delay and motor speed are adjustable by potentiometers R2 and R3. If heavier motor loads are anticipated, use the larger C30B SCR in place of the GE-X1 for SCR2
Universal motor control - schematic

Also, the capacitance of Cl can be increased to lengthen the time delay, if desired.




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