Comments on Strange Tube Circuit

Neither can we, but that's what the schematic says.

The antenna isn't connected directly to the supply--there's a capacitor in between, which blocks the DC. That isn't a terribly reassuring safety device, and crappy safety devices _were_ common practice back then.

You've been hearing from a bunch of old tube guys right here. The circuit just doesn't make sense as a transmitter, for the same reason that hanging an antenna on your MP3 player doesn't make sense. You could do it, but it wouldn't accomplish anything.

It could conceivably be part of the circuit for a theremin, with the "antenna" being used for variable capacitive feedback to change the oscillation frequency, but that's a very long shot.

Cheers

Phil Hobbs

Since no-one can find any real world use for the circuit, bear in mind that inventors go through a long ramp-up learning process before producing good ideas. Also even then most ideas turn out to be no good.

NT

What if it's a micropower VLF transmitter? Maybe 51" is code for 51 miles.

It is called a "Ukaco Device", see...

(beware... that is one strange document...)

I ran across this thing many years ago... kinda struck a chord so built something like it, except with a 1/4" input jack, a 250K gain control in place of the 2nd grid resistor, grid to wiper and on the output a 500K or 1M volume control and output jack - wonderful guitar overdrive!

As to its original application... no comment.. except it probably can output some RF due to the parasitic capacitances of the 270K plate resistors and wiring acting as loads.

Terry

OK, "ANY" frequeny was not the word to use. Of course there are limitations.

SO, not much more than a napkin drawing ?

Are we getting close to the Telsa copnspiracy theories here ?

What happened to him anyway ?

Miles seems unlikely, but 51 seconds of Earth curvature could do it (and would be even closer, I think?).

Still, nanopower. Antenna losses aside, the plate impedance matching is off by about 4 orders of magnitude. :-)

Tim

How did you ever find this?

I knew my Uncle was strange, but not this strange.

Page 44 of the above PDF shows the circuit I originally posted. The one on page 45 appears unrelated in function.

But the circuit on page 46 does look similar. And page 47 shows it in use.

Is it possible to determine anything further about the transmission frequency from the diagram on page 46?

Or is it still within the audio band?

Robert Stevens

I have cleaned up, rotated and uploaded the second circuit here for anyone who wants to have a look.

Entitled "Upton Transmitter" from the diagram.

I wonder what the "motor" is for?

Robert Stevens

....

Back in '90 or so I found a strange book at a yard sale called "Future Science", edited by John White and Stanley Krippner, that spoke of mysterious electronics used in the '30's-'50's for pest control and "other stuff". At some point an ad appeared in an electronics magazine for radionics circuits, curiousity got to me so I sent a few bucks for the paper (pre-internet days) and that was one of the circuits. Nutty stuff but immediately recognized it as a high-gain audio amplifier.. and as a side effect if it did anything remotely as advertised it might transmit my vibe to the audience :-)

As far as finding the PDF.. typed in radionics 6sj7 and it was the second link.

Farmer perhaps? Apparently those things were popular at one time - hard to believe it could ever work for its intended purpose (killing crop bugs) but in desperate times folks will try anything I guess.

Careful... nothing about this stuff makes sense. Back then people hooked up wires more or less randomly and if they felt better or whatever, declared it to "work". Of course you have to believe that it works first (plus get lucky). Often, the operator becomes part of the circuit, and sometimes it is discovered that the circuit was just a prop and whatever effect was occurring had nothing to do with the electronics. Or a DRAWING of the circuit worked just as well... at that point head explodes and uh.. nevermind. Now it's just history.

Terry

On a sunny day (Wed, 10 Jun 2015 22:09:05 +0000 (UTC)) it happened Terry Newton wrote in :

LOL 'Radionics the sane alternative to pesticides' page 23...

'Planetary association for clean energy'

hey that was 1979, must be an other planet. or did that glowball worming infection already manifest back then?

No

or is some undercover climate tax designer trying to revive that crap by posting that circuit? Would not surprize me a bit with that 0nana in the power puppet seat.

clean energy and heating up tubes, 1979 we already had lotsa transistors.

I think the word back then was Kirlian photograhy, I tried it once, without any usable result.

But of course at one point I could see the halos myself without any aid.

Nuf said

The band noise at VLF is very high, so you are going to need a lot of power. In addition, any realistic antenna on VLF is well below 1/4 wavelength, so the antenna efficiency may be as low as 1 % or even below 0.1 %. Realistically, for 80 km you would need about 100 W.

The commutator in the motor chops the anode voltage and hence also the RF output ?