On Sat, 24 Nov 2012 06:33:13 +1100, Franc Zabkar
put finger to keyboard and composed:

That said, here is the zener regulated supply:

Vin o-- R --|----|---o Vout
| |
Z C
| |
0V o-------|----|---o

Z = zener diode
C = electrolytic capacitor on reverse side
R = series resistor

Measure Vin with respect to 0V, and also measure the voltage between
Vout and 0V.

Examine the markings on the zener.

Here are you measurement locations:
http://www.users.on.net/~fzabkar/Syl...ed2863_reg.jpg

- Franc Zabkar
--
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