robb wrote:

"Eeyore" wrote

What value resistor did you have in series with the LED ?

you need to use a resistor ???

just joking it was 100 Ohm 1/2 watt (Brwn Blk Brwn Gold)

would you expect 8.67 Vout with 18V DC Vinput ?

Not under those conditions.

You do need a new L387.

Graham