The DPA 880 schematic
The DPA 880 low detail schematic (click on the image to see the high
detailed version (48 Kb)
Do not try to print this picture in Netscape because it's too
big.
Nothing much to discuss here :
Again,
this one is similar to the above ones, only it uses serial connection in the
power stage to allow a higher voltage.
The
bias current is 110 mA.
The
output coil is 14 turns of 1.8mm wire on an 11mm diameter.
The
trafo should be about 2*57 Volts and 20 to 25 amps !!!