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Old 7th April 2004, 04:16 AM   #11
diyAudio Member
 
Join Date: Nov 2003
Location: flyover country
Hi, Runeight -

Is 50mA the transformer's rating at 240VAC? If so, perhaps its secondary voltage peaks are being flattened when the 23mA load is applied which will show up as a loss of regulation. Is the 23 mA passing through the 5.1K before the point where the output is measured? That could result in 100 + volts of drop, also.

I used a HW circuit to get a bipolar output supply in the early days of my OTL amp but I probably pushed my luck a little bit when I used one of the dual primaries of a 1400VA toroid kit to do so
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