Successful TPU-ECD replication !

[turbo]

HAHA LOL 

How about this?

Simple,elegant,fast,robust,etc. Must be a hole in one 

[wings]

Does this ring any bells, Otto?

page 42

http://www.tech-systems-labs.com/books/GE-lamps.pdf

http://www.dos4ever.com/ring/ring.html

[tsl]

Let us think about how to pulse a TPU with a high frequency without MOSFETs.

why do you want to pulse a tpu anyway? the tpu is the pulser.
look at it as it were a PFL. the tpus with additional outer winding(s) are looking damn close to a nested blumlein PFL generator with a common ground.
and btw blumlein was a "audio guy" also (the father of the stereo )

[turbo]

why do you want to pulse a tpu anyway? the tpu is the pulser.
look at it as it were a PFL. the tpus with additional outer winding(s) are looking damn close to a nested blumlein PFL generator with a common ground.
and btw blumlein was a "audio guy" also (the father of the stereo )

I guess you never heard of Lee De Forrest and his Audion then......

@Wings

I once orderd 500 of those NE2 bulbs and i actually made such a counter by using a couple of 4017's 
Just like the one from that guy in the pic below,but i made it on a nice PCB 
It's still in one of them boxes over here...

[Mannix]

@marco,
Love the grid bias!