On Mon, 29 Dec 2003 17:47:06 GMT, lid
said...

"Watson A.Name - Watt Sun, Dark Remover" wrote in
message m...

I needed to drop 1V from a 6VDC 200 mA regulated wall wart, so I tried
a 3 amp rectifier, but it varied by more than .2V over a range of
loads. So I tried this: (view with courier font)

+ From
wall
wart --+
|
+---+------+
| |
| |
400 \ / 2SC2334 or TIP31
ohm / |/ NPN power TO-220
WW \-----| Heatsink optional
pot / |\
| E\
| |
| |
+----+-----+
|
|
+------ +
output
to load
- -------------- -
From wall wart

snip

Why not a 5volt zener and a resistor?....Just a thought...

I'm thinking 4.3V Zener and a series pass transistor.
--
Best Regards,
Mike