1x1 mt. coil for c.scope cs4 PI

[lamaison33]

hello,
I have a coil 1x1 mt of my old Lorenz pi, if I change the connector will be fine for my C.Scope cs4 pi?

thank you for answer.
Simone

[kt315]

Simone,

can you give measured L and R of cs4 coil? I believe this Eric Foster's design works with 'big R and L coil' and is unchargeable with '300uH' coil.
I need in additional data to tell you more.

[lamaison33]

Hello kt315,
i think don't understand, but the cs4 have 25 cm.polo coil...maybe it was that your question?
thanks for your help.
Simone

[kt315]

- what inductivity, how much, a value in microHenry, has your cs4 coil measured?
- what resistance has your cs-4 coil, a value in Ohm?

[WM6]

CS4PI coil cable is direct connected to PCB (no coil connector). To measure coil value, one need to open CS4PI housing and maybe this is a problem.

[lamaison33]

you say it is not possible? I had chosen the C.Scope because it is a simple and inexpensive, you have alternatives?
-economic machine,light and with the possibility of putting 1x1 mt. frame coil?
thanks in advance
Simone

[kt315]

I do not want to depress you but... WHY you think cs4 must work with 1x1m coil? where you get this info from? what idiot did suggest you connect 1m coil to cs4?

[porkluvr]

I might be wrong but I think you would be wasting your time trying to adapt a 1m x 1m coil. CS4 was probably designed for coin shooting whereas a large coil is more suited for cache/relic/meteorite hunting.

You'll have a huge ground effect with the large coil, and with the CS4 having no sample timing adjustment a multitude of false targets would make you crazy.

I don't have a good schematic for the CS4 and just maybe it does have a timing adjustment, but a -micropower- PI is probably not the ticket for relic hunting anyway.

Just a thought.

edit: And believe what KT315 said in #2. CS4 and the supplied coil are each part of a SYSTEM, with the coil L and R specifically designed to match both the low power transmitter FET, and receiver sample timing.

[WM6]

you say it is not possible?
Simone

All is possible, but question is, if it is reasonable to do.

CS4PI is not very stable with factory coil itself. It works at >3500pps ("3500Hz") and not at 150pps as classical PI.

Agre to what KT315 and porkluvr say, there are no real options that your 1x1m will work stable enough on your CS4PI to be usable.

[lamaison33]

ok, I understood,I will try another solution.
thanks
Simone

[kt315]

cs4 and cs7 are designed by Eric Foster. he is here. like a profi he will not get down at beginner level and give you answer you need. it is capitalistic world. no more USSR with socializm you could wrote in communists' newspaper desk and they were always on serve to speedy answer you in full form. all home electronics then have full schematics, detailed description, layout PCB pics in colour - TV sets, radio, recorders etc. it was GOLD TIME. can you find out anybody with LCR meter around near you? ask him to measure the cs4 coil. but anyway... 1 m coil from Lorenz is incompatible to cs4. it has another impedance.

[lamaison33]

I think kt315 that finding someone with LCR meter is simple, but from what you said leads me to believe that it is not the best way,otherwise if Eric Foster thinks it is possible I thank him if he did know.
thanks to all.
Simone

[kt315]

Simone... there are -

---- LOW IMPEDANCE COIL/SCHEMATICS, like Hammerhead, Surf PI, Bara, Clone PI, Koshei PI, etc. we call them '300-350uH monocoil'.
---- HIGHT IMPEDANCE COIL/SCHEMATICS like Eric Fosters' last secret projects, simple and inexpensive without alternatives, C-Scope's CS4, CS6, CS7 etc.

you will get Nobel Prize if would adapted frame from Lorenz to cs4.

[porkluvr]

Just because Mr. Foster might not jump in to answer questions (here or anywhere) does not mean that he is a greedy capitalist, it just means he is smart enough not to fall into a trap. When would the questions ever end?

[kt315]

I believe E. Foster is not greedy capitalist too and may be one day will share out schematics with us. just did pay $30 for Teknetics S/T schematic and as soon as I receive it , scanned, will take a place in DVD-ROM with collection of schematics.

hapiness to you and your family