Quote:
Originally Posted by Tomcomm
Ultor is adjusted at min of 28kv, max is well over 36kv! HOT cathode reads 128ma.
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Read from where, the fuse like last time or an actual current reading from the tube cathode? 6JE6 is a stout tube, heavier duty than the 6CB5 (higher max ratings, anyway). I personally don't believe you're getting 30+kv at that cathode reading, unless you somehow stumbled on a combination that works better than RCA originally came up with.
If you really do want to get a better picture out of this thing by toying with the HV supply, you need to make it 'stiffer'. The electronic equivalent of horsepower vs torque, if you get what I mean. In other words, you need more current and better regulation, not more voltage. To do that you would need a flyback capable of delivering that current, or a pair of smaller ones. Then you would need a way of controlling the extra power, which would mean a pair of shunt regs. Or a better solution: heavy duty flyback, and forego the shunt style reg in favor of a feedback type of thing. Something like an extra winding on the flyback which produces a voltage which can be used to control the drive (like the GE portacolor).