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Registered Member #10
Joined: Thu Feb 02 2006, 09:45AM
Location: Bunbury, Australia
Posts: 1424
Vasil Feb 3 2006
Dual MOT SGTC Two MOT with seried secondaries, primarries in parallel, current limited with two ballast coils. 4.32 inches diam secondary, 966 turns little toroid 7 turns primary, taped at 6 turns 25 nF @12.8 kV primary cap, MMC style 22 inches discharges.
Now updated to 35 nF primary cap, 5 turns primary, dual static spark gap, 25 inches streamers
Registered Member #10
Joined: Thu Feb 02 2006, 09:45AM
Location: Bunbury, Australia
Posts: 1424
Vasil Feb 3 2006
Mini DRSSTC with a half bridge made with BUP307 IGBTs (1200 V @ 35 A) Antenna feedback driver 4.32 inches diam secondary, 1325 turns res freq with toroid = 157 kHz 3 turns primary 250 nF primary cap 22 inches streamers
Registered Member #10
Joined: Thu Feb 02 2006, 09:45AM
Location: Bunbury, Australia
Posts: 1424
Vasil Feb 03 2006
OBIT powered SGTC 9500 V @ 23 mA OBIT 1.96 inches diam secondary, D/L = 1/4.7 , 1175 turns little toroid res freq = around 400 kHz 10 turns flat primary, taped at 9 turns 6.66 nF @ 24 kV MMC primary cap up to 20 inches with a multiple spark gap
Registered Member #10
Joined: Thu Feb 02 2006, 09:45AM
Location: Bunbury, Australia
Posts: 1424
Vasil Feb 3 2006
Flyback powered mini SGTC AC flyback rectifyed, driven by a ZVS driver 1.96 inches diameter secondary, 1075 turns ball topload 6-7 turns primary 3.6 nF primary cap simple static gap For specific current seting, the output is a single waving streamer
Now follows new entries since the start of the current 4HV.org
(don't forget the posting rules which are slightly changed since a post can contain 2 photos)
The 3 Rules to keep it consistent and readable: Each coil to have only 1 page of info (ie fits on your computer screen). Brief is best. Each coil to have only 2 photos (do not double post for the second photo). Only coil details and photos to be posted. Direct any queries direct to the person or in a new thread.
A coil is defined by its secondary (change of toroid isn't a new coil) Enter as many coils as you wish. Beginners coils are welcome and this log is designed to be helpful for beginners.
Registered Member #154
Joined: Sun Feb 12 2006, 04:28PM
Location: Westmidlands, UK
Posts: 260
My second DRSSTC, 8 inchx3.5inch secondary wound with 36AWG, Full bridge of HGT1N40N60A4D igbt's, 75nf res capacitor, 4x 470uf storage caps with 2x10uf on the igbt's. Steve Wards driver circuit with OCD, primary feedback, Primary is tapped at 4.5 turns. total height is 17.5 inches.
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