Hey-Hey!!!,
The 20 Hy/100 mA Hammond 193C is a fine piece. We are about double critical current with 250 volts input. This also offers the additional current handling to change taps onthe PT and go fith a shunt regulated VR-tube power supply later.The Hammond is a litle less than half the price of the 8039 Heyboer choke at about $30 instead of $70 or so.
It looks like you guys are in fine shape.
regards,
Douglas