Tubes?

[Super God]

I have to admit that I have done some rather stupid things.  Until now I haven't recognized the importance of a blocking oscillator.  They are obviously key to the device!  The big TPU has two, and ironically it uses TWO frequencies.  The open TPU has ONE but uses an unknown number of frequencies, I'm assuming one.  But now we have conflicting ideas on my part, the sine wave input should produce results, but how does that tie into the sharp pulses created by the blocking oscillator?  The tubes play a role in there somewhere too, I need to figureout where, and the kicks, the key to the device, has to fit in there too.  I feel that I'm getting closer   Of course I could be wrong.  "Another way of succeeding at finding a way not to do it"  I guess.


P.S.  After reading this post I realize that this may all be speculation, so I don't want to mis lead anybody into thinking I'm 100% on this stuff.

[innovation_station]

osc circuit

a quote from below 


there will be continued ampification sufficent to over come the losses in the circuits and produce sustained oscolations

so you all what does that mean?

oh yea read the last line on the page
is

[turbo]

i picked up two plate transformers and i will use one for the high voltage and the other for the 5 volt heater so i can run them out of phase.

and i did also pick up some big capacitors and 3 of those variable tunning capacitors with the air between the plates, i don't think they make these anymore.

Marco.

[rensseak]

osc circuit

a quote from below 


there will be continued ampification sufficent to over come the losses in the circuits and produce sustained oscolations

so you all what does that mean?

oh yea read the last line on the page
is

Hi all,

@ IS

just in addition to your post

http://www.schmarder.com/radios/others/regenrx.htm

regards

Norbert

[BEP]

I used a variation of the attached while experimenting with magnetic rotation.
A good place to visit for much detail and examples of many circuits is http://www.vias.org/basicradio/basic_radio_15_09.html .

When I used this circuit I doubled it and connected them together as a multivibrator. The unique thing about this is that the frequency is highly dependent upon the magnetic resonance of the core and much less on the resonance of the coil. The coil of each tube circuit can be split into adjacent control coils.

I have some doubts about SM using it as I strongly believe he had two sets of tubes. Each set consisted of a triode and a diode. I suspect a triode or dual triode because the photos appear to show a metallic base tube. This would mean it was rated for UHF/VHF. The second tube appears to have a separate plate cap. This could mean many things but at that size of tube it usually meant it was a high voltage diode.

That would probably mean he had two blocking oscillators wired together as a multivibrator so they would alternately pulse one time each.

How would he get two pulses out of each?
The two coils of each circuit - each located 90 degrees apart would appear as two pulses - one lagging by 90 degrees.

How would he get two freqs?
Each half of the multivibrator circuit could be different by turn count or core mass so each half of the multivibrator would complete its cycle at a different rate.

Where is the third frequency?
The difference between the first two pulse rates would create a component equal to the difference between them.

What about one collector being higher Q than the other?
You can increase the Q factor of a coil by applying feedback from another coil(a tickler coil). The tickler coil is generally much fewer turns and carries a much higher current than the other coil. How you apply this info depends upon your idea of coil layout.

I hope this helps. At a minimum it should provide interesting results.