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- Photo transistor characteristics board
- DC Timer using UJT and SCR
- Sequence Timer using LED and IC 555
- Photo relay using LDR and IC 555
- Half wave control using DIAC and SCR
- Full wave control using UJT & SCR
- Lamp Dimmer using DIAC & TRAIAC
- DOL Starter using IC 555 and solid state contactor
- Burglar alarm using IC 555
- Four Digit counter with multiplexed LED Display
- Speed control of DC shunt motor using SCR
- 2 DIGIT presettable UP – DOWN counter
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