In this weekend, I'm trying to build my old idea: RS-trigger in the "forbidden state" (when both R and S is "active" in one moment).
Like Chua's circuit, my circuit is very simple, but fully digital (online simulation for draft)!
The variable resistor works as a delay line for inputs R and S to help the circuit find balance (when the switch is on, the trigger must settle into one of the two stable states).

Like my previous researching (link), this circuit now is very-very simple and based on a single SN7400 IC.

Good ICs for this purpose is SN74LS279, SN7474 or SN7472.
But at this moment, I am build the circuit using only the SN7400.

P.S.: The main idea: Detection of torsion fields, solar neutrinos, or black hole collapses.
(Just This is my way)

Hi Alikberov,

looks neat. How are you going to test it? Do you have means of producing black hole collapses at will? 

Surely beats pushing buttered slices of bread off of a table and measuring if it always falls on the buttered side 

Ok now that the jokes are out of the way - Are you doing experiments with torsion fields then? Are you able to influence it with your mind?

Well, respect for interesting!

As first - I have RADIO-86RK (near analogue - TRS-80) with video-out based on i8275.
The i8275 have one input LPEN (Light Pen) and lot outputs (GPA, RVV, HLGT).
In the basic model of that PC is haven't color RGB-out and all pins is free for optional use.

In this case, I can turn on/off my RS-trigger by signal from i8275 with full programmally control, when this trigger must to be activated: I can paint needed region of screen with signal from this "detector".
Then I can to do a "smart RS-Monitor".
But main problem - is too highly frequency (25 MHz as Composite-In for CRT-TV - is very high)!
(Using the counters, like SN7493 - is bad way (any counters is smooth-up the noised "real RS-picture").

As second - So, in 2004 I haved tiny OOBE and reads trilogy by Robert Monroe.
Late - Torsion Fields by Shipov-Akimov and Axion Fields by Shpilman.
As short - Yes, I have few extras in this case.

But I can't understand the classical radioelectronic - digital only!

Then, this RS-detector - is "my digital word" in whole of that all.