Thanks for posting this Carl! It supports what I am looking into. Made an extra thread as not to muddy green?s thread.
https://www.geotech1.com/forums/show...coil-at-Tx-off
Given a PI salt water coil ... hooked up to the MPP E. Mono Tx, figure...
5 results in 0.0057 seconds.
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Question - PI coil with separate Rx & Tx - Shield both coils or just Rx ?
Wondering if my reasoning makes sense of maybe only having to shield the Rx coil?
Any thoughts, experience with this ... Thanks. -
My MPP vers E completed but not finished ... yet
I am enjoying the MPP vers E with various mods, especially from KRinAZ.
I find the build instructions great and the way the 555 timer has been implemented for making the variable pulsing signals
with the pots is one nifty little circuit. -Lift hat and bow- ... George and ALL thank...Last edited by Polymer; 04-25-2019, 01:43 PM. Reason: NoQ not another question - scrapped another one -
Polymer started a topic Measured C and calculated L of thick and thin insulated coil winding wires ... questionsin CoilsMeasured C and calculated L of thick and thin insulated coil winding wires ... questions
I have measured two different coils @20 windings each.
One has "normal" insulation the other a very thick insulation.
I am somewhat puzzled by the results.
The measurements were made via resonant frequency.
Thin insulation:
650kHz with 150pF...Last edited by Polymer; 04-20-2019, 01:49 PM. Reason: formatting turned out crapola, spelling in editing reason crapola :-O -
Has anyone tried ESD tape for shielding PI coils?
I have looked at many ESD shielding sticky tapes in various widths.
One of them has a specified resistance of only 10? to 10E4 (1 to 10k).
The others all have very high resistances in comparison.
Might this be interesting for shielding a PI coil,
has someone...