Kapanadze Cousin - DALLY FREE ENERGY

[d3x0r]

1MΩ will charge the probe's capacitance slower. 
Difficult stuff.

So; basically, if Dally got an oscilloscope, that his measurements might not even be the same as when it's actually operating... in the case of this nanopulse especially, the act of observing the circuit changes the circuit...


Also, it seems... adding the resistor and capacitor before the gate on the high voltage driver eats the pulse and makes it a long delay of quite moderate voltage (it's only 5 volts peek to start...) this is the right behavior?

[Hoppy]

I have now completed my main coil to the Dally's specification and build. The L1 & L2 winding inductances are as follows: -

L1 - 4.16mH @ 15KHz.
L2 - 519uH @ 200KHz

Measurements taken with a PICO LCR meter.

Approx measured resonance of L2 with 1.5uF cap - 12.5KHz.
Approx measured resonance of L2 with 4.7uF cap - 4.6 KHz.

See attached scope shots taken with x10 probe with coils fed square wave from signal gen.

As Itsu suggests it appears from his sound recording analysis that Dally was running his inverter at 4.6KHz and this would not necessitate the need for a ferrite cored transformer. My mains toroid transformers can all run up to around 15KHz without appreciable signal distortion.

Regards
Hoppy

[verpies]

I have now completed my main coil to the Dally's specification and build. The L1 & L2 winding inductances are as follows: -

L1 - 4.16mH @ 15KHz.
L2 - 519uH @ 200KHz

Measurements taken with a PICO LCR meter.

Approx measured resonance of L2 with 1.5uF cap - 12.5KHz.
Approx measured resonance of L2 with 4.7uF cap - 4.6 KHz.

See attached scope shots taken with x10 probe with coils fed square wave from signal gen.

How are you driving this main Dally coil?
If you are driving it with your own TL494 based generator, could you post a scopeshot of your drain (or collector) voltages on the primary side?

[verpies]

So; basically, if Dally got an oscilloscope, that his measurements might not even be the same as when it's actually operating... in the case of this nanopulse especially, the act of observing the circuit changes the circuit...

With a passive scope probe, essentially yes. 
However if the ns pulse has a very high amplitude then it will "punch through" even the high capacitance of low frequency probe.
If a 100MHz (10ns) scope is lucky enough, it might even sample the peak of the 1ns pulse, making it visible on the sub-GHz scope.

It is possible to observe a ns pulse without an oscilloscope because such pulse has 23cm in a RG-58 coax, and its reflection can be sensed with capacitively coupled fast SR-Latches outside the coax through its field leakage or evanescent wave.

[Hoppy]

How are you driving this main Dally coil?
If you are driving it with your own TL494 based generator, could you post a scopeshot of your drain (or collector) voltages on the primary side?

From signal generator. My TL494 generator which uses 2N5401 driver / MJL21194 power transistors is not yet up and running on transformer.

Regards
Hoppy