Check the listing for details. LabVolt 91011-20 Thyristor & Power Control Circuits Electronics Board EDU. Condition: Used. Listed at 59.00 USD. The Thyristors and Power Control Circuits module enables students to perform practical exercises that demonstrate thyristor and power control circuit fundamentals.The system contains the following circuit blocks:- Driver- Silicon Controlled Rectifier (SCR)- Triac AC Power Control- SCR DC Gate Half-wave and Full-wave- SCR AC Gate and UJT Half-wave and Full-wave/MotorTopic CoverageThyristor: Component Familiarization, Circuit FundamentalsSilicon Controlled Rectifier (SCR): Testing, DC Operation, Gate Trigger Voltage and Holding CurrentRectifiers: Half-Wave Rectifier, SCR Controlled Half-Wave Rectifier, Full-Wave Rectifier, Phase ControlUJT: Characteristics, Half and Full-Wave Phase ControlBidirectional Conduction, Triggering Modes (4)Troubleshooting Basics and Troubleshooting Thyristor Circuits