gud morning
i have a brake pcb card issue.OPERATION ---variable potentiometer is fitted to card.as the potentiometer is adjusted voltage gets changed dc output ....output is recieved from scr without gate pulse .. 40v transformer output is given to the scr BTI 500R and 2N2646 (UNIJUNCTION TRANSISTOR) is giving gate pulse to scr...so i disconnected the gate pulse but dc voltage output received from scr .so i changed scr too ..but problem repeats...waiting for suggestion....
i have a brake pcb card issue.OPERATION ---variable potentiometer is fitted to card.as the potentiometer is adjusted voltage gets changed dc output ....output is recieved from scr without gate pulse .. 40v transformer output is given to the scr BTI 500R and 2N2646 (UNIJUNCTION TRANSISTOR) is giving gate pulse to scr...so i disconnected the gate pulse but dc voltage output received from scr .so i changed scr too ..but problem repeats...waiting for suggestion....