The TPU uncovered? (A PROBABLE technique.)

[pese]

@ Pauldude

I your circuit is something wrong , and cant work this way !

The first Transistor cant drawn any current , works , switch, oscilatte or do anything, BECAUSE
the first diode hold the base, in any way below 0,8 volts , so , no voltages/currents can flow after the emitter + second  diode.

review your circuit that it can work with the 555 together

gustav pese

[pese]

@ pauldude

in your circuit is something wrong.
pls review ist.

Ref:  : The first diode hold the Base
of NPN in range of 0,6-0,8 volts.
so the emeitter + Diode2 , can not drwn any
current , voltages , swich, oszillating or others.
so ... it cant work wit the "555" together.
pls review it

gustav pese

[pauldude000]

@Pese

I double checked, both my schematic, my first draw, and the original, and it is correct.

The initial idea is not mine. I remember coming across it from a circuit diagram online. I searched, an found the original, which I hated as they used a square block diagram with no R or C values and put the pins where convenient to draw, not convenient to breadboard. I modified this in that I did away with an unnecessary connection, made it easy to convert to a breadboard, and modified its scope and applicational usage. The original was a single 555 driving diagram, of which my original post of the schematic was a direct interpretation.

Anyway, I will quote the inventor of the original timing circuit and his reasoning:

From:

Tony Van Roon at http://www.uoguelph.ca/~antoon/gadgets/555/555.html

"When the output is high, the transistor is biased into saturation by R2 so that the charging current passes through the transistor and R1 to C. When the output goes low, the discharge transistor (pin 7) cuts off the transistor and discharges the capacitor through R1 and the diode. The high & low periods are equal. The value of the capacitor (C) and the resistor (R1 or potmeter) is not given. It is a mere example of how to do it and the values are pending on the type of application, so choose your own values. The diode can be any small signal diode like the NTE519, 1N4148, 1N914 or 1N3063, but a high conductance Germanium or Schottky type for the diode will minimize the diode voltage drops in the transistor and diode. However, the transistor should have a high beta so that R2 can be large and still cause the transistor to saturate. The transistor can be a TUN (europe), NTE123, 2N3569 and most others."

The original replies to the 555 schematics start at reply no 1385 in Otto's "Successful TPU-ECD" thread, and end at 1395 on page 35. Check out the screenshots of this non working circuit, working, my friend! (By the way, you will notice quickly that I draw my own schematics.)

@Loner

You are right, this circuit is FAST. I can overclock the bejeebers out of a TS555CN to the currently measured max of 4.9mhz (though the datasheet says 2.7 mhz max) depending upon components used. Check out otto's thread and my original posts. I have screenshots of the breadboarded unit with the freq meter showing output at 4.1 or so mhz. The wave suffers at such high freq, but it still oscillates!

However, as wierd as the connections seem. IT DOES WORK.

Paul Andrulis

[pese]

@Pese

I double checked, both my schematic, my first draw, and the original, and it is correct.

The initial idea is not mine. I remember coming across it from a circuit diagram online. I searched, an found the original, which I hated as they used a square block diagram with no R or C values and put the pins where convenient to draw, not convenient to breadboard. I modified this in that I did away with an unnecessary connection, made it easy to convert to a breadboard, and modified its scope and applicational usage. The original was a single 555 driving diagram, of which my original post of the schematic was a direct interpretation.

Anyway, I will quote the inventor of the original timing circuit and his reasoning:

From:

Tony Van Roon at http://www.uoguelph.ca/~antoon/gadgets/555/555.html

"When the output is high, the transistor is biased into saturation by R2 so that the charging current passes through the transistor and R1 to C. When the output goes low, the discharge transistor (pin 7) cuts off the transistor and discharges the capacitor through R1 and the diode. The high & low periods are equal. The value of the capacitor (C) and the resistor (R1 or potmeter) is not given. It is a mere example of how to do it and the values are pending on the type of application, so choose your own values. The diode can be any small signal diode like the NTE519, 1N4148, 1N914 or 1N3063, but a high conductance Germanium or Schottky type for the diode will minimize the diode voltage drops in the transistor and diode. However, the transistor should have a high beta so that R2 can be large and still cause the transistor to saturate. The transistor can be a TUN (europe), NTE123, 2N3569 and most others."

The original replies to the 555 schematics start at reply no 1385 in Otto's "Successful TPU-ECD" thread, and end at 1395 on page 35. Check out the screenshots of this non working circuit, working, my friend! (By the way, you will notice quickly that I draw my own schematics.)

@Loner

You are right, this circuit is FAST. I can overclock the bejeebers out of a TS555CN to the currently measured max of 4.9mhz (though the datasheet says 2.7 mhz max) depending upon components used. Check out otto's thread and my original posts. I have screenshots of the breadboarded unit with the freq meter showing output at 4.1 or so mhz. The wave suffers at such high freq, but it still oscillates!

However, as wierd as the connections seem. IT DOES WORK.

Paul Andrulis

Hallo Paul.
Even if this work (by not to understand circumstances) as leackage currents in transitor, it cant work by this scematcs:

Look:

at the output of the transistor (afre the second diode) you must an an voltage -to have an here, vers low current-.
Even if it is only 0,05 to 0,1 volts.
(but possible you will use 0,6 to 0,7 volt -limited by the diode-)

so:
you must have at the point between emitter and diode(Kathode) at lest 0,7 to 0,8 volts)
SO.:
Iso the transistor must "conduct" that an current can flow fro, collector to emitter.
(if the transistor is not demagend or lecking) so the base of this transitor must be
supplied with at lest 0,55 to 0,7 volt HIGHER (positive voltages) than the emitter.

So you must have 1,4 to 1,5 (or little higher) that the transistor begin to conduct
as an "voltage-follower-trap (current aplifier) "

Use  2 or 3 diodes in front. use an resistor 10kohm to supply (+)
connect the primpot 50kohm between ground and  the 10kohm/diodes.
(that point have now  1,5 or 2,2 volt !!
So you can take aut the "slider" from (10-turn-trimpot any voltage between 0 to 2,2 volt (1,5)
ot opereate in better condition with the transistor.

Is the 10 pf condensor right ? .
Than you work with "higher" frequencies !
Attention !!
Thin abaou blocking condendemsort co connect here . also between supply and ground, to reduce
wrong oscillation that can produced by the wirerings in circuits like this.

I have uses lot of time to find out this problems if i start with this experiments near 50 years ago

Pese

In THE CIRCUIT is now the BASE supplieds with max 0,7 Volt
the voltage drp in transitor will be also be nearby 0,7 volts.

If your circuit is (possibly) working , that PALY with very low voltages and currents
and is this "unuasal circuit" not in stabile condition. in this way, taht "everyone reconstructin from
this scematic will work. (Even the transitor can "inmitted" fully by small changes in scematic

[sparks]

   @ Pauldude


     Matter to achieve perpectuation through the spacetime continuom (resonance) has to achieve a state of spin.  Either it's spinning or falling apart.  A change in the dielectric field or charge intelligence of this field is energetic or antiinertial.  It is change as is all "energy".  This change seems to radiate but what realitivisticly happens is it alters the spacetime intelligence of the field it was inacted upon and the observer "sees" radiation while his inertial frame navigates the spacetime continuom.
This is a realitivistic model of the kick phenomenon.   Tesla's model of  the spacetime continuom is described in terms that are  much more intuitively accepted.  Instead of modeling the entire universe into a two dimensional virtual state he uses the aetheric model.   Whereas the aether is given fluid properties and a 3 dimensional virtual state.  Energy or change displaces this aetheric sea of inertia.   The kick still represents change but is imposed on a virtual 3d sea of inertia..  This aetheric liquid composed of inertia is "displaced" by energy.  This displacement travels through the aetheric liquid compressing it and expanding it as it goes.  Much more intuitively understood.  Using either model all matter must spin to achieve resonance.  All potential energy in the spin state of matter is translated into change when the spin state of the matter is altered.  An energy displacement or kick of the aetheric liquid creates aetheric friction on the spin state of matter.  This friction alters the mass spin resonance and translatory energy is released which of course causes more displacement of the inertial sea.   I suggest SM was referring to this when he was talking about his cannons firing cannons firing cannons etc.  Tesla and Einstein both saying the same thing but Einstein was a mathmatician and Tesla a visonary.