>
> 4. The transformer secondary does indeed have the centre tap shorted to t=
he
> neutral/return side of the transformer.
>

How did you determine this?
Ohmic connection?
Do you get 230 VAC (or whatever mains is) between the "centretap " and eg
pin 5 when operating.
And 300VDC across the transformer half secondary.
Phase on regulator ground, via lower diode to transformer secondary bottom.
Or, as Olin is wont to say "I don't think so!".
ie having both phase and neutral connected to different parts of Ohmically
connected lv components will lead within 0.01 to 0.02 of a second to
 blowenfusen und poppencorken mit spitzensparken.


          Russell


http://sturgeon.css.psu.edu/~mloewen/Blinkenlights.pdf

http://www.astrodigital.org/digital/achtung.html

http://www.urbandictionary.com/define.php?term=3Dblinkenlights

http://en.wikipedia.org/wiki/Blinkenlights

http://www.netlingo.com/word/das-blinkenlights.php
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