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Results 2061 - 2070 of 2632 in Forum
  • General Science and Electronics | IGBT oscillators

    Posted by thrival on Thursday 29 November 2007 - 18:31:45
    ...nto is I get no action at all. I tried a 2.5" dia toroid with 8 turns of 18 AWG transformer wire as the primary. Thinking maybe I wasn't getting eno...
  • General Science and Electronics | Mosfet's protection

    Posted by Linas on Thursday 29 November 2007 - 10:24:57
    yes, the Fr is 342KHz, but then i use bigger toroid then Fr is 300KHz.. and i don't have any mosfets, tomorrow i am going to buy IRF460, but i thin...
  • High Voltage | microwave parts

    Posted by JoeDarkon on Tuesday 27 November 2007 - 07:19:36
    ...ssion board is useful for equipment you make. The toroid core can be used in a ZVS circuit. Capacitor. 1uF 10kV with bleeder. Use as a voltage do...
  • Tesla Coils | Stainless steel toroids?

    Posted by Zum Beispiel on Monday 26 November 2007 - 20:08:02
    Steel will work. I haven't made a steel toroid, but I have used a stainless steel sphere (or "near sphere") in the past and it worked fine. I bought...
  • Tesla Coils | Stainless steel toroids?

    Posted by Zum Beispiel on Monday 26 November 2007 - 20:08:02
    Steel will work. I haven't made a steel toroid, but I have used a stainless steel sphere (or "near sphere") in the past and it worked fine. I bou...
  • General Science and Electronics | Antennas and radiation - some questions...

    Posted by Marko on Monday 26 November 2007 - 15:10:33
    ...resonant frequency would be pretty stubby; still, toroid can set the frequency down to it. So could I, if resonator really behaves like a transmi...
  • General Science and Electronics | Antennas and radiation - some questions...

    Posted by Marko on Monday 26 November 2007 - 15:10:33
    ... it, and I noticed it didn't make sparks from the toroid, but about half way down the secondary it made like 6" sparks right off the wire (not sharp p...
  • Projects | Mini SSTC

    Posted by Tom540 on Monday 26 November 2007 - 07:34:33
    A small update. I made a tiny tape toroid. I'm not really happy with the spark length and it arcs to the primary past 90 volts on the variac. ../...
  • Projects | Mini SSTC

    Posted by Tom540 on Monday 26 November 2007 - 07:34:33
    A small update. I made a tiny tape toroid. I'm not really happy with the spark length and it arcs to the primary past 90 volts on the variac. ...
  • Projects | Mini SSTC

    Posted by Tom540 on Monday 26 November 2007 - 07:34:33
    ...big and I'm thinking of replacing it with a small toroid. I did manage to kill the fets after taking the video. In the last two pics it was runn...
 
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