Kapanadze Cousin - DALLY FREE ENERGY

[Hoppy]

Hi Hoppy, what is the frequency of this beat? While this beating, what happens when you slightly move the frequency potentiometer? Does this beat change frequency? Does it disappear?

Guys I attach a schematic with a Cw and a ccw arrangement of a katcher coil. The first occasion is mine, with both primary and secondary cw arrangement. In this case collector goes on the right end of primary as you look at the picture. Where the collector goes when the arrangement is the opposite? At end no.1 or no.2?

Hi Jeg,

The beat frequency is from about 0.5Hz right up to above 50Hz where the eye cannot detect the lamp pulsing.

[magpwr]

Mag,

You raise an important point about reactance. I'm getting as much as 400V across the inductor cap and its important to use the best low ESR caps for this component, designed for pulsed operation. As you suggest, ideally smaller caps should be paralleled to make-up the required value in order to reduce reactance. Caps at 400V rating heat-up and blow out on my setup, so I would advise at least 600V DC rating.

hi Hoppy,

The capacitor should be at least 700 a/c rated.
The vdc rating on  capacitor is typically higher than it's A/C rating.

The induction heater caps base on 3 various values i have is 800 A/C , 1200VDC.

Bought from seller in China via ebay which come with free shipment.Select the lowest induction heater cap value around 0.2x uf x5 or 0.3x uf x 4 in order to get close to around 1.2uf as example.

Hint-"Ruslan WIMA capacitor is 700A/C rated" But i think these metalized capacitor (MK) is not the best choice.Since i am aware "metalized capacitor" does have "higher self  inductance" and which is lower Q.Not forgetting to mention it was not specially manufactured for induction heating purpose.It's more of general purpose capacitor with higher ESR than induction heating capacitor.

[starcruiser]

Another point to ponder ...

Has anyone tried to adjust the voltage to the primary of the TC?

i.e. use a variac to feed the rectifier section that feeds the primary drive ckt, this would allow one to see what effects different HV values has on the output and waveform.

Just a thought.

[Hoppy]

hi Hoppy,

The capacitor should be at least 700 a/c rated.
The vdc rating on  capacitor is typically higher than it's A/C rating.

The induction heater caps base on 3 various values i have is 800 A/C , 1200VDC.

Bought from seller in China via ebay which come with free shipment.Select the lowest induction heater cap value around 0.2x uf x5 or 0.3x uf x 4 in order to get close to around 1.2uf as example.

Yes, you are correct about the AC versus DC voltage ratings. However, I'm speaking in terms of what I'm using as being the minimum voltage that's 'safe' for my setup and what I have available in new component stock. I agree that higher voltage caps are an even safer choice.

[Hoppy]

Some more encouraging news. I changed the load to a 40W clear bulb so that I could clearly see the glowing filament. On the previous experiments, I had forgotten to carefully insert the ferrite rods into the Kacher tube to tune frequency to 1.316MHz. I was just pushing the rods up and down the tube and of course constantly changing the Kacher frequency  - doh!. Now having tuned properly, I can clearly see that as the Kacher waveform approaches maximum amplitude, the lamp filament does start to pulsate and I can change the pulse frequency by making very slight adjustments to the positioning of the ferrite rods.  The bulb also changes slightly in brightness level. I'm getting a short purple streamer off the end of the antenna. The Kacher frequency without the ferrite rods inserted is about 2MHz.