Successful TPU-ECD replication !

[ronotte]

High all,

please look at Otto's mixer: what is implemented is not OR but rather a sort of 'WIRED AND'.

Have you asked yourselves what happen when for example the lower freq oscillator is in it's 1 level? Well the connected Mosfet's Drain is locked to zero level so locking the same for all the others!! (no matter what they are doing).

In my opinion what it's happening is a rather complex process that's changing continuously as the input freq are asynchronous. Really not easy to understand and in a certain way not deterministic. The output that I see is composed by bursts of freq that suddenly clear and resolve to a fixed & stable condition that you see immediately as the scope trigger is at the end synchronizing something stable!

Lot is left to be understood.

regards to all

Roberto

[MeggerMan]

Hi Roberto,
Hmm:
IRFP460PBF
500V - 0.27R
20A
rise/fall 59/58ns

Price in Newark is about  3.27USD
Price in UK is a about 8.00 GBP.

Slow and not cheap.

Rob

[ronotte]

@Rob,

I pajed them 1 Euro/each !!
THEY seem to do the job...I'll tell you more.

Roberto

[EMdevices]

Have you guys noticed what WaveWatcher said:

One thing ran into another and I tied the pulse from one coil to another with some LC (no, not big enough mFd to hold a shock) to phase it so it is useful and next thing I know I have two small hacked RS transformers with PM inserted linked as one howling, audibly,Ã,  about 300hZ with no signal applied.

Note:Ã, Ã,  "RS" stands for RadioShack, I believe, "PM" for Permanent Magnet, and "LC"Ã,  for Inductor and Capacitor (to make a resonant tank and also change the phase a bit so it adds in feedback)

EM

[gn0stik]

wavewatcher, can we get some clarification on this? perhaps a diagram?

Regards,
Rich