UJT, R & RC Firing circuit for SCR One number of UJT , R & RC Firing circuit is provided2N2646 UJT used as a triggering devicePotentiometer is provided for firing angle adjustments (10-170 degree)1:1 Pulse transformer is provided for pulse isolationsOne number R FIRING circuit with Potentiometer for firing angle adjustmentsOne number RC FIRING circuit with Potentiometer for firing angle adjustmentsPulse Outputs for all 3 firing circuits are terminated by connectors for SCR inputsOne number of TYN612 SCR with proper heat sink & snubber circuit is provided230/24V @0.5A Transformer is provided for UJT Firing circuit input230/24V @1A Transformer is provided for power circuit inputOne number of Toggle switch for Power circuit 24V AC ON/OFFOne number of Power Resistor of 100E/20W is provided as R loadPower ON/OFF Switch with IndicationAll are mounted on a nice cabinet with See through acrylic top cover