HIGH QUALITY TPU DVD Video Released from Jack Durban

[mikestocks2006]

@MIke and Codewebs......wow  cooooollllllllll, going to try it

CodeWebs, Dom, good to see interest in this simple self oscillator experiment.
Here is an exact layout of it.

Should anyone replicates it, it would be great to confirm the high output voltage at points C and D without any load.
As I tried to measured, it overloaded the 500V max readout on the digital meter at 1KOhm and also overloaded without load.

Thanks

[poynt99]

Mikestocks2006,

that's a nice little "passive" bemf pusler, but of what relevance is it to the TPU?

i think this has been "discovered" dozens of times, it's not ou sorry to say.

[mikestocks2006]

@mikestocks

Good work. I'm glad to see some are trying reeds and you discovered the magnet at the right angles makes it oscillate. If you try and find some normally closed reeds also and use them side by side to the NO reed connecting one of the ends together. This will enable you to send the flyback to another coil and check the secondary output of that one. Actually a three way reed is preferable but two reeds having the same specs except for NO and NC will do this. I think if the TPU was using reeds, the 20 minute run time is logical. A 3-way reed would enable reusing the flyback instead of having it return only to create heat and burn out the reed....

Hi wattsup,
Thanks for the suggestions.
I checked again with RadioShack and they do not carry any NC reeds or any NC reed/activating solenoid combo.
So for the time being I?m trying to keep it as close and as simple as possible to the initial SM?s setup and as jdurban noted in the interview, RS was the source for parts back then. However; NC and 3 way are available from Hamlin and others.

A next logical step would be to have the small?s toroid output C-D feeding the primary control coils of the TPU or at least one of them, add more self oscillating circuits such as this for more control coils? Also what would happen if the small toroid is not used at all and the A-B are fed to the main primary coil(s) in the SM tpu? What would a series of high voltage spikes across the main primary to the tune of 5-6KHZ would result at the collector (final tpu output)?

The reed switch (magnetic sensor) could even be removed from its own activating coil and be placed near or inside a primary main control coil too, or better yet to get the complete feedback have it sensing and cutting off from the final collector output? 
Its an attempt to break the system down to its most elementary elements in an effort to test/understand the basics of the working principle before mixing it up to more complicated levels.

Note: the reed is very easy to remove from inside its activating coil from that RS part. Just slowly bend back straight the two center leads and it just slides out of one side from the blue coil casing.

Thanks

[mikestocks2006]

Mikestocks2006,

that's a nice little "passive" bemf pusler, but what relevance is that to the TPU?

i think this has been "discovered" dozens of times, it's not ou sorry to say.

I never said it was OU, where did you see that? Did you read my previous posts?
Just trying to get a simplistic driving circuit for the primary of SM tpu using simple available parts from RS.

[poynt99]

so why use a reed switch mate? using a transistor or fet or hall sensor is pretty darn simple too...have you studied any bedini circuits?

your operating frequency is at the mercy of the mag bias and coil surrounding the reed

radio shack had transistors and mosfets back then too, but assuming that all or most SM's parts came from radio shack is a pretty big assumption i think