Bloch wall disconnect and reconnect. The final design!

[bear rabbit]

Nice coil!

[giantkiller]

@BR,
thnx.

@WU,
I am thinking air core, or speaker magnets? If ferrite then the bucking would be lost in the core instead of slapping into the surrounding space.

This is the last piece I need for the next step. The bucking is the key. The GK4 was a bench-top bucking bronco.

When you pulse such a bucking coil let's say at 2MHz, for some weird reason, I cannot seem to stop the scope to see the clear waveform on my 60MHZ scope. It's as if the speed of the pulsing has gone over the roof. Probably directly due to the bucking mode. When the first half of the primary gets the pulse, it is already sending energy to the last secondary, and as the pulse reaches the second half of the bucking primary, it sends energy to the first secondary, and this criss crossing of the pulsed signal is creating more pulsations.

You are 'dead-on' with this statement. That is the self oscillation happening and it does travel well across space. That is why I keep showing the Smith collector stage in the vids. The only configuration I haven't shown is the self-osc wrapped inside a ring.
Your scope can't lock on because the self-resonance is self tuning. It wants to drift because of the feedback loop but can not because of the static parameters of the coils themselves. When you find the right note, the correct angle and distance the tube amp will blow.

[ramset]

GK
Sure is gonna be something .....watching history ,,,watching you fellas do this .

Its sure gonna be something.

Kind of hard to get your head around it.[what it "ALL" means]

Thanks

Chet

[giantkiller]

latest...

[MasterPlaster]

Wattsup,
Ahhh, bucking coil. I thought I had seen it somewhere else before: