Resonance WFC measurements

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Hy Seb,thanks for the reply and info,by the way,about the frequencies you talk about..last night i examine for an hour or so the  original VIC card pictures/the schemes of vic that some guys putt together/and tony pcb parts/...what i came up with:instead of the ne555 timer that everybody uses on the original board was the tlc555 timer which is an improved version on the ne555 and could go in the MHz range(read the datasheet),secoundly I found that the frequency generator is missing from the original board(i'm may be wrong,look for yourselfes)because all the ICs where there like in the skematics but the sn74ls90 IC are missing,i saw instead,the LM741 amplifier ,that might be used instead of 74ls90?and another thing i looked at the gated puse freq gen from the injector setup and has two more ICs differend from the skematic...Please reply,Seb ,Tony..or anyone else!

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Are referring to Stan's VIC card? The 555 on Stan's VIC Card is for the scanning circuit. The 555 with the 7490's is located on the Gate Pulse Frequency Generator, which Stan only using the lower frequency setting of (i.e. 0.5 Hz - 10 Hz). The 4046 on the VIC Card is the IC responsible for generating the high frequency pulses. Hope that helps you out.

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This ic sn74ls90 is a divide counter if i remember correctly... Is used to generate low frequency with more precision or so you can get easy adjustment of the frequency range. The tlc was prefered by stan probably because of the temperature range.. cause if he had to generate high frequency would be better with the pll... My pll gets up to 4Mhz if i want it... there are other IC versions that arrives up to 20MHz however at this frequencies power dissipation at the switches is too big. Stan said he worked low in frequency audio range... cause is all that is needed my best guess.
br
sebs

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''Are referring to Stan's VIC card?''
yes see attachement 1
''The 555 on Stan's VIC Card is for the scanning circuit''
I know i am reffering to the tlc555 on the variable pulse see attachement 2
''The 555 with the 7490's is located on the Gate Pulse Frequency Generator''
The 555 and 7490 is on the variable pulse freq gen.see att.2,on the gated pulse freq there is no 555 timer see att.3
''The 4046 on the VIC Card is the IC responsible for generating the high frequency pulses''
The freq is coming from gated pulse freq.gen. trough the 4046 and then to cell driver and then to primary coil?(corect me if i am wrong).
Also see att.3 ,the gated pulse gen.scheme in the patent is wrong i think because there is only 5 ICs and on the real board there are 7ICs.

Here is what i came up to from comparing and determine separated circuits on your vic board(see att.4),GMS boards,and original vic card(att. 1):the original vic card contains  PLL  ,scaning ,probably cell driver and pulse indicator i can identify them,and the vic cards are completed by pulse freq gen/gated pulse gen/ etc...located in the GMS box.Tony could(if you want/have time and pleasure) you explain how the circuit boards are working and are interconected, in the patent wo9207861 is not too clear.Please reply!!!

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Now is uploaded properly

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Ok check this out and let me know if it clears up everything for ya.

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Yes I understand now,on the original VIC board you draw the PLL and scaning almost like I did(you are the master,y draw just from comparison)but the cell driver /pulse indicatorand voltage amplitude,i was not able to identify,whatever ,the ideea is that your vic pcb includes all circuits(pulse gen/gated pulse...)and stans vic has the other two separated in the GMS box,thats was not clear for me,i thought there are all on the same board,thanks verry much for the skemes it makes it clear now(bare with me i am a beginer in this tech,and i maybe ask dum questions,but i strugle to read and understand stans work every day) Thanks again Tony!!!

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no problem Adys15, glad I could help