#12 - VTTC - 830B Testing, power meter fitted.
Channel: kaboooom2000uk
Date: 2020-08-14

More high voltage experimentation, added a power meter to give me an idea of the current and voltage being fed into the HT supply and show the power factor so I can try and correct it later down the road... bought another 8A 240V variac to adjust the filament of the ceramic tube mainly, but used it for fine filament control on this tube. 

Secondary is wound on a glass fibre tube instead of acrylic, to help withstand the heat, and to decrease high frequency losses (if any) and I have configured the coil in Hartley configuration with the centre tap of the primary grounded. Operating frequency is about 600Khz. CW Mode as I still have to rebuild my SCR staccato device to obtain better arcs.


Circuit I used is based on the one on this link, parts are random and not too critical. http://www.vias.org/transistor_basics/transistor_basics_06_02_01.html