Step by step Procedure to test the triac: Keep the digital multimeter into Ohmmeter mode. Using a junction diode determine which ohmmeter lead is positive and which is negative. The ohmmeter will indicate continuity only when the positive lead is connected to the anode and the negative lead is ...
How to test an SCR Testing SCR using a multimeter. A multimeter can be used to test SCRs quite effectively. The first procedure is to check the diode action between the gate and cathode terminals of the SCR. This test is just like what you have done in the case of testing a silicon d...
When I measure them on my multimeter, they register as 1k in the dark state, and when I put light on them, the resistance jumps to above 6k. If I use them in the separate buzzer circuit, the buzzer sounds loud with light shining on the ldr and also sounds loud still when they are ...