user TURBO?s replication of Steven Mark?s TPU ?

[twosox]

Stefan

coils connected as per ronotte's diagram, fed with squarewave.
i've got more wire on the way so i can get the other two layers
meshed together.

derek.

[Groundloop]

[EDIT] Deleted.

[virus]

Guys

This looks like something that can be adapted to work with serial feedback etc.
http://elm-chan.org/works/uctr/report.html

Virus

[virus]

@Virus,

I will post the Eagle 4.1 design files on my web site for download. I will also post a black and white PCB drawing for those that prefeer to make their own PCBs. I have NOT tested this circuit yet, still waiting for parts in the snail-mail.

My web site is here: http://home.no/ufoufoufoufo/

I will upload the files this afternoon (in 6 hours time.)

Regards,

Alex.

Alex

Thanks a million.

Virus, now I can test drive my new scope.

[pese]

@twosocs

u have right ,  if you will see the mix from all 3 frequeny together  , than scope is unless.
BUT (low budget or no costly)
if you will construct 3 seperatly generator /with NE555  TL494)
you can each-one "SINGEL" bring to the "right" frequency , if vou comaore that frequency with an preselcted frequen< (like 44khz) - made wuth soundcard with ton-generator-software.

NOW you can compare (any CW SSB radio amateur know that)
vie (in German Schwebungsummer) Google Transalation say :
"float-hum-floating float-hum-humming who "  possible: Nonsens.
BUT if you take the differenz from both signal differenz Amp. or direchty to an Cristal- or Normal Speaker (Also analog AC Voltmeter)
you can find if the to frequencies have the same 44Khz.
( Example ; One Osz is 40 Kht , the other 44 Kht - THAN you
can heare (4Khz) differncy signal , soyoucan adjust to  ZERO Hertz very easy , IF .. both  frequencies are same !!
Using instead  AC Voltmeter... say : some Voltage if differten frequncies ANDr ZERO Voltage if compare.

So you can produce 3 Exacly frequencues WITHOUT Scope
and without Frequency Meter !!! (only our Computer Sound Software it needs).  


@ all
think about this: IF you will build this item to Audio frequencies.
(40 to 20000 Hz) , than it can be possibel ,that isnt working w?thout
iron cores ....-try it-!
1 month ago some Patent was schown in Forum,with core - holes in it that hold the inner coil windings. AND driver coils outside . evenually you can try an construction that adapt this ,
to the 3 frequency "idea" device .
Pese

I hope this help , even if my english is very unpolished ... :-)