833A problems

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Dr.Resonance by way of Terry Fritz <teslalist-at-qwest-dot-net>" <resonance-at-jvlnet-dot-com>


Steve:

You might consider a departure from normal VTTC design.  Put the HV power
transformers in a separate enclosure under the display table.  Use NST GTO
wire to route the HV up to the oscillator circuit which contains the tube,
caps, inductors, etc.

This helps a lot in transport also as carry the power xmfr "power pod"
separately is a lot easier than having in contained with all the other
oscillator components.

A short 3-4 ft. long cable does the HV DC and AC fil. transfer work.

Good luck with your coil.

Dr. Resonance

 > Oh, about the insulation problem, thats all over now :)  The coil needed
 > better tuning, and a more adjustable grid coil.  Now its happily sprouting
 > 22" sparks:)  My next problem deals with induction heating.  Im using
metal
 > brackets to hold the primary down.  They get VERY hot.  Also, realizing
 > that, i need to relocate the MOT PSU.  Right now, is below the primary
 > pretty much in the center of the coil!!!  I didnt think about it!  That
 > could really be eating up some power!  and the MOT seems to get hotter
than
 > it should in such a shot amount of time (although its supplying some 2kw!)
 > So after these problems are solved, i should be seeing some really nice
 > sparks, as if the 22" was not already impressive.

 > Steve Ward.