Model Railway Forum • Three-leg common-anode leds in series ????? - Page 2

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Re: Three-leg common-anode leds in series ?????

Posted: Fri Feb 26, 2021 5:28 pm

by Brian

Hmm Not sure if the opto isolators are NPN? I've never thought of feeding negative into a collector

Re: Three-leg common-anode leds in series ?????

Posted: Fri Feb 26, 2021 5:54 pm

by collectors

I have ordered some opto's & will have to do some experimenting. Will let you know.

Thanks