Antiphase spiral coil transmitter + receiver

[WM6]

For those interested in spiral coil transmitter here one simple transmitter schematic, which anti-phase frequency outputs can be set from down to 1Hz to up to 10MHz.

Transmitter frequency is set by C1 and C2, by rule:

C1 = C2

Par example

- to get frequency of 1Hz then C should be about 50uF
- to get frequency of 10MHz C should be about 10pF
- to get frequency of 1MHz C should be about 200pF etc.

Coil inductance of receiver should be calculated according transmitter set frequency.

Telescopic antennas are all connected over capacitors (TX with 47nF, RX with 47pF respectively).

IC1 of receiver is symmetric supplied by two 9v batteries.

[detectoman]

wm6 thanks very much for schematic, i send a embrace from mexico, too at all group members

[WM6]

You are welcome detectoman.

Next weekend I will post proposal of one possible way of: how to build combined spiral/telescopic antenna (I am out of my home at the moment - till Thursday I suppose).

To clarify "tight" drawing: spiral antennas are connected between (Q1, Q2) emitters (respectively R6 of receiver) and ground. So this way representing by electrical symbol:



Spiral coils inductance for 1MHz about 150uH.

Telescopic antenna can be replaced with piece of aluminum (or Cu) hard wire or small tube of adequate length for chosen frequency, par. example for 1MHz length is 150mm (not very critical).

Spiral antennas of TX (L1 and L2) are anti-phase wound, for zeroing (phasing for RX spiral antenna is of your choice - more will be explained latter with antenna build suggestion).

[abdou2014]

where is the rest of the circuit .

[WM6]

Rest of the circuit is in first post.

This (second) drawing only explain how telescopic and spiral antennas from first post schematic are connected (using electrical symbol for spiral antenna instead of, not so - regarding connectivity - clear first drawings).

I am trying to held complete circuit as much simple as possible, despite building and tuning spiral antennas is not completely simple. Power supply is left to builder choice and availability (74LS00 logic should be supplied in range of 4.75–5.25 V). If you use 5V regulator on 9V battery in TX stage, then you can supply transistors direct by 9V and IC1 over 5V regulator (in this case schematic supply lines should be adequate adapted: 9V at R6 and R5 instead of 5V).

As I already say in first post: RX IC uA741 should be supplied symmetrically by two 9V batteries according this there is mistake in schematic pin marking - instead of 0V at negative supply rail there should be -9V (please correct accordingly !!!!!).

[WM6]

A little theory on spiral coil magnetism to irritate mastermind:

http://www.sciencealert.com/a-magnetic-wormhole-that-connects-two-regions-of-space-has-been-created-for-the-first-time

[abdou2014]

there are not circuit .

[WM6]

there are not circuit .

So? Then you have serious problem. Take a big dowsing rod and hit your head at least 33x and you will see circuit suddenly.

[WM6]

Corrected (symmetrical supply for uA714) schematic:

[Geo]

So? Then you have serious problem. Take a big dowsing rod and hit your head at least 33x and you will see circuit suddenly.

....................

[enjoykin4]

Привет WM6

Simplifay yours circuit - try this Scalar waves transmitter (longitudinal waves).
For the Scalar type receiver use the same coil as for transmitter. This device was known as "Tabletka Korobeinikova".




White box is "Tabletka Korobeinikova".

Tr1 - any high frequency transistor with high ft= 100Mhz....1Ghz or upper - also with high h21e.

Др1 and Др2 are classical RF chokes. inductance of L1 = inductance of L2 . Two same coils with same wire diameter and same winding diameter but in opposite phase (180 degree) - one coil is righ wounded other left wounded/ adjust the distances between coils and tune resonant frquency. Driving with any shape signal on resonant fequency or on harmonics of resonant frequency. You can add two variabile (or fixed) capacitors in parallel with each coil for fine tunning together with searial capacitor C for blocking DC component and tuning resonant frequency of circuit.

link is:

http://n-t.ru/tp/ts/nv.htm

ps: antiphase coils were also known as "Partnered Coils" or "Bucking coils".

Best regards
enjoykin4

[Mike(Mont)]

WM6, is this a scalar transmitter? I don't understand its purpose. I guess it cancels out something. You have two opposite waves, then they go to zero. Must be very close to scalar but not quite the same?

[Mike(Mont)]

WM6, more questions. What does the conical-shaped spiral coil do compared to a flat spiral? I guess it concentrates the signal into a tighter pattern, or is it the opposite, a wider pattern? I look at it as each wall is pointing out towards the opposite side instead of straight ahead. I think I have been watching too much Alice in Wonderland--Through The Looking Glass. Please don't laugh too hard.

[WM6]

Hi enjoykin4, thanks for the nice proposal, how to test existence of Scalar waves.

We will come to this later in experiments.

For now: my proposal here is different from bucking coils in this that bucking coils are usually single phase driven and the turn anti-phase in coil construction. In my proposal two (single) coils are independent anti-phase driven.

In general: we need to balance here between long an very short wavelength.

At very short wavelength (say in cm of wavelength) devices constructed are very small and handy but all even minor parts used are very critical.

At longer wavelength (tens of meters or even kilometers) to get useful phase difference on directivity of reflected wave antennas should be bulky but electronic design is not critical.

[WM6]

WM6, is this a scalar transmitter? I don't understand its purpose. I guess it cancels out something. You have two opposite waves, then they go to zero. Must be very close to scalar but not quite the same?

WM6, more questions. What does the conical-shaped spiral coil do compared to a flat spiral? I guess it concentrates the signal into a tighter pattern, or is it the opposite, a wider pattern? I look at it as each wall is pointing out towards the opposite side instead of straight ahead. I think I have been watching too much Alice in Wonderland--Through The Looking Glass. Please don't laugh too hard.

Potentially yes, it could be converted to scalar transmitter. Main purpose in this design is to easily get quiet status in receiver or TX signal zeroing in receiver module.

Main drawback of Scalar waves is its advantage in same time. They cannot be stopped by material substance, so they cannot be reflected too. But they can trigger in some circumstances that parts of matter radiate their own Scalar waves. We live in world of waves and resonances. Depend of how we approach to this waves we can get mess of cacophony or pure music. There is no universal resonance in this world as resonance is main condition of identity all things in world of waves.

In fact proposed coils are not only conical spiral but logarithmic (not clear from drawing) wound conical spiral with phase shifted radiator in middle of spiral to get transverse longitudinal effect in antenna radiation. To proper phase shifting of middle radiator we need to select proper C on radiator supply line. This could greatly improve directivity of reflected wave on RX side.