Otto`s replication of Steven Mark`s TPU

[chrisC]

Hi Gustav22 & Otto:

Thanks again for the translation and Otto for the solid state oscillator circuit. Unfortunatley, the scan quality left a lot to be desired! If I had a scanner or CAD tool, I will volunteer to redraw it for the benefit of all. Unfortunately I have neither. Perhaps you can refer to the magazine/book page?

BTW, what are the 3 frequencies again? I supposed they are set separately by the values of the RC combinations? Thanks again for sharing.

ChrisC

[otto]

Hello all,

@ChrisC

the book is an old one and in Croatian language.

Yes, the frequencies are set seperatly. Hmmm...for the moment Im using 2 frequencies in the range 100kHz - 300kHz and 1 frequency in the range 10kHz - 100kHz.

I havent repaird my scope so I cant tell you the exact frequencies.

But, I know, when you have the right connections and the right coils you will find the exact frequencies in only a few minutes. Thats for sure.

Otto

[gyulasun]

Hi Folks,

I found some links on ICL8038 IC based funtion generator schematics, in fact similar to the one of Otto's old book.  Even the data sheet of the ICL8038 (Intersil) is there.

See these links:
http://schematics.blogspot.com/2006/07/function-generator-using-icl8038.html where the output frequency is up to around 100kHz (IC is capable of working up to 300kHz).

At this link the schematics shows the output frequency goes up to around 300kHz
http://www.cip.physik.uni-muenchen.de/%7Ewwieser/elec/oscillator/ICL8038/
(because the selector switch connects a 100pF capacitor to the oscillator in the IC.)

I mention all these only to be able to see the application circuit schematics of the ICL8038 ic in a better quality than that is shown from Otto's old book.

Gyula

[kokomoj0]

well here is what I found out about marks, so I will just sit back and see 

http://www.overunity.com/index.php/topic,2384.0.html

[Motorcoach1]

Otto SM tought you thought  now you are like me a ovic , your on the path  the thing is to get the magntics gone i the tempricfeilds do tihs i thik by useig capacitors at each level  in the 90 feild that wiel bring the feild 180 bipola in the chage it pases at a fast rate so the topsing goes by it and pahase the diffrential in the 20 degree sweep that you may have missed