For the life of me I am not able to find out what mistake I am doing.
I have built the same circuit as shown here :
Sorry for bad quality of image ! Its from a web cam.
Tx (26Vac)>> BR >> LM317 >> small indicator LED
I have tried R values from 10E to 22K. The red LED keeps blowing up always and the LM317 heats up. I have tried many LM317 chips, they all behave the same. So I think the chips are ok but there is some dumb mistake I am doing in the connections. Please help.
Thank you.
I have built the same circuit as shown here :
Sorry for bad quality of image ! Its from a web cam.
Tx (26Vac)>> BR >> LM317 >> small indicator LED
I have tried R values from 10E to 22K. The red LED keeps blowing up always and the LM317 heats up. I have tried many LM317 chips, they all behave the same. So I think the chips are ok but there is some dumb mistake I am doing in the connections. Please help.
Thank you.