Any past work using SR or SSR?

[BEP]

SR   = Stochastic Resonance
SSR = Suprathreshold Stochastic Resonance

For those not deep into wave propagation:

SR is a method of producing travelling waves in a static field, signal boosting of signals well below the noise floor and other things. Both methods are used for several different processes. I heard recently SSR is being used in data communication.

Since SM is reported to have used noise to create a unique process in the audio range I'm wondering if he used noise to create a self regenerating modulation and boost of ambient flux. This method can produce incredibly clean sine.

[ben8807]

Very interesting thought. Bit beyond my usual cup of tea, but probably well worth investigating.

I highly doubt SM was working with anything this advanced, at least not intentionally, but it's possible he stumbled upon it.

[BEP]

"Advanced" ?

Not really. A bit out of the ordinary, perhaps. Someone gave it a fancy name around 1990 but it has been used since the 20's, at least.

Noise injection into small loop antennas with perpendicular coils to make them resonate lower.
Part of the regeneration process in a simple regenerative radio receiver.
May have been part of early ground current communication.
Interception of computer display contents during the cold war.

[pauldude000]

@BEP

Just a thought,

You reminded me, and I don't know why, that you can make a wire appear eletrically much larger (longer), by applying a DC bias.

From shortwave antenna's and all that rot.

Paul Andrulis

[BEP]

Yes. I believe that is correct but the result wave zero is usually just offset when the bias is applied to the whole antenna.

An example of the fun I have with that....

1 single turn loop cut to 1/4 wave resonance @100mHz (conventional resonance)
At four locations around that loop place a divider coil.

Divider coil (sorry this is my terminology):
Two single layer coils. One wrapped over the other. Current direction in both is the same. Both coils connected in parallel to each other. Copper mass of each coil is identical.
One is wrapped CW the other CCW.
The amount of copper is decided based upon the abilities of the driving circuit and the strength of the signal of the main loop. The object is to 'pinch' the signal in the main loop.

Try one divider coil and then more. Don't be surprised if that main loop seems to resonate in the ultrasonic range.

I've seen old radio sets with antenna loops and (divider) coils on those loops. They never seem the same from one to the other but one old Philco had the divider coils connected as tickler coils but wrapped, as described above, over the antenna loop in the cabinet. This model had a regenerative receiver with audio stages only.

The antenna loop should have only worked in the VHF/Lo bands but did very well from below the U.S. AM broadcast band up.

Not knowing what you need.... Don't limit yourself to a constant DC bias unless that is actually needed.