Kapanadze Cousin - DALLY FREE ENERGY

[Hoppy]

   
   
 
  Like the saying goes...  SH!T, or get off the pot.

  Sorry, for my rudeness.
                                           NickZ
   

Hi Nick,

The problem is, some are so full of it that the pot will stick to them.

[NickZ]

   Hoppy:
   Well, as mentioned previously, I would try my Mazilli/yoke circuit connected to a 12v, 10 AMP!  car battery charger.  No more old beat up junk batteries, they died, or were murdered, like Sea Monkey says. So now, a I'm using 10 amp input, instead.  The charger reads 12.5 volts output.
   So, what do you think happened? Do the fets stay cool now, as you were suggesting?
   NO!  As I suspected they heat up just as fast, or FASTER. So, that was not the cause of transistor overheating.     
   Next...   Big heatsinks and fans, as there doesn't seam to be any other way to go.
   I'm also still waiting for the delivery of the 18v zeners to arrive, to see if they will help, or not. I hope so.
   

[Hoppy]

Nick,

Please post a close-up photo of your complete Mazilli circuit.

PS. I've just looked at the sketch you did of your circuit (below) and noticed that you are not showing 'fast' diodes that are required. Did you fit the normal 1N4001 /07 or the fast UF4007 type?

[NickZ]

    Hoppy:
    At the rate that I'm going, the circuit may never be complete. 
    But, I'll post a pic when I get the akula air coils up and going right on it, as they still need more tuning and such.  The old 4.5 Ah battery when fully charged actually puts out more lumins, than the 10 amp charger does. So, the Mazilli may be drawing over 10 amps from the battery, maybe more like 12 amps, or so. No wonder the battery doesn't last very long.
  I plan on getting a decent multi-meter. One that can read over 10 amps, one of these days, also.
   I'll run both the battery and the charger together, when running the circuit, which may help to keep the battery lasting  a little longer, for now.
But, the problem is the transistor overheating issue, still.
   In any case I'll have to redo the Mazilli circuit, with heat sinks, and fans, when I get the zeners. Radio Shack does stock them (18v 5 watters). Unlike the TL494  IC's which aren't available from them at all.  But, the nearest Shack is about 150 miles (round trip) away, and I have to pre-order them first, for them to have them in stock there. So, I may not be able to build the nano pulser circuits anytime real soon.
  The diagram that you just re-posted was made by Geo, not me. I use the diagram that I posted a little while ago, (the one below). He did not include the zeners on his diagram, as are shown in the diagram below.
  The regular diodes that I'm currently using are the small one, either IN4001 or the IN4007. I can't see them properly, to see which one they are while they are still mounted on the crt, but I can see that they are the IN series, not the UF's. They don't heat up at all, nor do the zeners, or anything else, like the caps, etz... only the fets heat up.

  Hoppy, did you take your Mazilli apart? If not, why don't you run 5  100 watt bulbs on it,  and let us know how hot your fets get, and how many amps your circuit is  drawing, if possible?  OR, Itsu, or anyone else that has that crt up and running and can attach some bulbs onto it to test with.

[Hoppy]

    Hoppy:
    At the rate that I'm going, the circuit may never be complete. 
    But, I'll post a pic when I get the akula air coils up and going right on it, as they still need more tuning and such.  The old 4.5 Ah battery when fully charged actually puts out more lumins, than the 10 amp charger does. So,  the Mazilli may be drawing over 10 amps from the old battery, maybe more like 12 amps, or so. No wonder the battery doesn't last very long.
  I plan on getting a decent multi-meter. One that can read over 10 amps, one of these days, also.
   I'll run both the battery and the charger together, when running the circuit, which may help to keep the battery lasting  a little longer, for now.
But, the problem is the transistor overheating issue, still.
   In any case I'll have to redo the Mazilli circuit, with heat sinks, and fans, when I get the zeners. Radio Shack does stock them (18v 5 watters). Unlike the TL494  IC's which aren't available from them at all.  But, the nearest Shack is about 150 miles (round trip) away, and I have to pre-order them first, for them to have them in stock there. So, I may not be able to build the nano pulser circuits anytime real soon.
  The regular diodes that I'm using are the small one, either IN4001 or the IN4007, but I can't see them properly while they are mounted on the crt, but they are the IN series, not the UF's. They don't heat up at all, nor do the zeners, or anything else, like the caps, etz... only the fets heat up.

  Hoppy, did you take your Mazilli apart? If not, why don't you run 5  100 watt bulbs on it,  and let us know how hot your fets get, and how many amps your circuit is  drawing, if possible?  OR, Itsu, or anyone else that has that crt up and running and can attach some bulbs onto it to test with.

Nick,

My Mazilli was taken apart some time back. I use a PWM based oscillator for FE experiments and only built the Mazilli for a couple of induction heating experiments.

When you re-build, don't forget to also fit fast diodes like UF4007's, as this could very likely be the root of your problem.