Which NPN Transistor?

Open janCGN opened this issue 2 years ago • 1 comments

Hey @killee , I have rebuilt the setup so far. Many thanks for the great description. However, I am currently facing the problem that when "heating=off" the voltage at the SSR is 5V and when I switch it on it drops to 1.9V - so the 5V is only present in the "off" state. Is that normal? You wrote something about the NPN transistor, can you tell me which one you used?

Thanks in advance

Feb 19 '24 15:02 janCGN

I'm so sorry for the late response.

I've used a bc547 with a 1kOhm resistor for the base.

I don't understand exactly where you measure the voltage. Can you describe it a bit?

Regards

Mar 15 '24 16:03 killee