RogerTango
New Member
Well, Im not stupid, but I sure feel like it right now.
Using 5vdc (source is from 7805), I apply +5 through a 1k resistor and then to pin 1, and pin 2 is GND.
The opto got hot, and didnt work. Hot enough you cant touch it. I took the power off, re-examined my schematic, my connections and the solder joints. Took out the 4N35, and replaced it, I figured I burnt it up. The second one had a short life too.
For the love of money, using a 4N35 cant be rocket science!
My target application is Pic(axe) chips where a leg will go LL +5, I want to use the opto to do simple low voltage, low current switching.
Thanks for any help- I only have 18 left and would like to get something working before I deplete my stock! HA HA!
Andrew
Using 5vdc (source is from 7805), I apply +5 through a 1k resistor and then to pin 1, and pin 2 is GND.
The opto got hot, and didnt work. Hot enough you cant touch it. I took the power off, re-examined my schematic, my connections and the solder joints. Took out the 4N35, and replaced it, I figured I burnt it up. The second one had a short life too.
For the love of money, using a 4N35 cant be rocket science!
My target application is Pic(axe) chips where a leg will go LL +5, I want to use the opto to do simple low voltage, low current switching.
Thanks for any help- I only have 18 left and would like to get something working before I deplete my stock! HA HA!
Andrew
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