LordHelmet Profile Topics Started Replies Created Engagements Favorites Search replies: Forum Replies Created Viewing 1 post (of 1 total) Author Posts February 6, 2024 at 12:21 pm in reply to: Damaged Photoresistor #41920 LordHelmetParticipant I guess it’s not photoRESISTOR but phototransistor – right? The part listed as “SN-30-10” in the manual, which is combined with the LED and heatshrink to make the optocoupler. Author Posts Viewing 1 post (of 1 total)