RST Engineering wrote:
.
If you added 500 ohm resistors to the circuit you've done something no other
human being has done since RETMA took charge of component values prior to
WWII. 470 or 510 maybe?
Jim
The one slight mod I did to Jim's schematic was to add 500 ohm resistors
500 is not an uncommon value for power resistors.
Huntington Electric lists it as a standard value:
http://www.heiresistors.com/axialresistor.htm
Curt