user TURBO?s replication of Steven Mark?s TPU ?

[starcruiser]

BTW Aether22, the TPU v5 has a collector that is 18 turns of lampcord wrapped as coil then the control coils are hand wound thru the dounut hole. It does not take all that long with 18 AWG.

With the TPU v6 the collector is based on what Otto has done and is similar to the Markovich design. Single Rod  with a coil wrapped over it.

[giantkiller]

starcruiser, it seems you are winding your collector which it's a sausage and then making it into a rod, is that correct?

Giantkiller, how did you make yours? did you wind it as a donut (slow and laborious) or as a normal coil and them bent it into a donut.
ESIT: If so it means I misinterpreted your design, I thought it was 22 turns in series, but it is probably parallel in that case. (though I suppose you could feed it through)

I really would hate to wind over 2400 turns the hard way unnessasarily, I guess it comes down to the question: GK, when you say 22 turns, do you mean in series or parallel?

Please answer, this is quite important.

EDIT: I also want to make 100% sure that each of the 3 rings has only one segmented control coil feed by a single tip41a.
Also i want to clarify, you are driving the tip41a directly with the 555 right? Is there a reason you didn't use a MOSFET?

Donut wound. each collector is 22 turns serially. 1 complete wire. I just posted the stuff.
--giantkiller.

[starcruiser]

Hey GK,

how close did you make the control coils to each other? Right next to each other or do you have a space between them?

[giantkiller]

@starcruiser: Great job. and thanks for the help.

@ aether22: keep the questions coming. It makes better doco.

[starcruiser]

@GK,

Helping with those calls....