Successful TPU-ECD replication !

[pauldude000]

Hello all,

@Paul

500kHz is a low frequeny  (I tried this). We need a higher frequency. In the low MHz range.

Otto

is 4.12 Mhz better? I can't believe I managed to kick a 555 into doing it, But I have officially overclocked the heck out of one! I took some pics to prove it. (Have you ever used a laptop webcam to take pics? Serious keaster pain.)

First pic is the breadboarded 555 circuit. Basically the transistor/2diode circuit posted earlier. However, I changed some component values.




Second pic is a frequency reading.



Third pic is where I managed to tweak a few more khz out.



The Final pic is the waveform at 4.121 Mhz on my scope at 50ns 1v/div.



For square wave, it is terrible. For pulsed frequency, I guess it would work.

Paul

[otto]

Hello all,

@Paul

its OK. Dont worry about the signals, they are OK but why is everybody building square wave oscillators  when we need SINE WAVES???

DFRO said to use 1 to 4 sets of pulses,  "packets" of pulses or "trains" of pulses or......just look at Stanley Meyer. In such a case of pulsing our coils we have a few pulses pushing our particles and then follows a stop - break and again we have pulses.......in such a case our MOSFETs are not all the time ON and this means that they are not sooo hot....

Then DFRO said to use a 9V battery for the power supply and RISE this voltage with diodes and caps...

Otto

[Feynman]

@otto

Square waves have sharp gradients (in Bearden's theory this may be important).   Also you can convert a square wave to a sine wave with a 6-pole analog low pass filter.


@pauldude

Nice overclock of the 555! 

[altium]

Dear sirs, Giantkiller and Otto, would share a MHz range working diagram with me?

[pauldude000]

@feynman, & all interested in 555 circuits...

Do not get me wrong, but I am using a TS555CN (CMOS. ST datasheet 2.7 Mhz Max Astable Frequency.). I will try the circuit to see results on an NE555 or LM555 in this config later.

For those wanting to experiment with overclocking, I have managed to eek out 4.9mhz maximum now. I have some specs.

ACTUAL resistances:  

4.12 above: fixed resistor 694 Ohms (690ohm rated metal film); variable 50k trimmer pot.
4.9 max: fixed resistor 248 (as rated metal film) Ohm; same 50K variable trimmer.

Timing Capacitance (AS Rated as my LC tester will not test accurately below 10pf):

2.7pf ceramic (ceramic is what I have right now, for those puritans )

Diodes:

1n4001 (i think) small signal switching

Transistor:

2N4401 NPN General purpose switching

555 timer IC:

ST electronics TS555CN, comparable to the LM555C

Have fun!


Paul