Hi this is post from Max and Per NEw Pages
They are continuing to do good work , I have shared here as it raises awareness for industry and may advanced us all more .
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Tony also continues to work hard on electronics
Max and Per , PLease feel invited to participate in forums more
all for one and one for all .
Stanley Meyers 5-Coil VIC Transformer
Winding and Wire information
After studying existing material on Stanley Meyers 5-coil VIC transformer, a friend of
StanleyMeyerWebshop has written a MATLAB program to fit measured values of DC resistance,
induction values and bobbin dimensions, to reach some practical value of the numbers of windings
and the wire diameter. Parameters to fit were, number of turns, wire diameter and air-gab.
Calculations revealed that two columns of the measured data was swapped for some reason. Here
are the resulting values based on a ferrite core with a relative permability of 2000:
Unit Feedback Primary Secondary L1 L2
Windings 487 629 3384 3558 3290
WireDia[um] 229 269 254 254 254
WinHght[mm] 2.6 1.4 6.6 6.9 6.4
L[mH] 25 42 1203 1330 1137
error[%] 4 -0 15 5 -0
WireLen[m] 27 35 213 225 206
Enamel-insulated 0.25mm Ø copper wire vill be used:http://dk.farnell.com/pro-power/ecw0-25/wire-1120m-1-0-25mm-coppertransprnt/dp/1230976?Ntt=1230976
The original wire diameter seems to be slightly thicker but the number of turns is the most
important parameter. When putting on the windings it is recommended to put a layer of insulating
tape every other layers. This provides insulation between layers as well as a smooth surface to lay
the next windings on. Space is tight on the secondary windings. When starting on the winding, put a
piece of insulating tape on top of the start of the wire, so that extra insulation is provided against all
other winding layers.
The insulating tape could for example be 15 mm polyimide (kapton) tape:http://dk.farnell.com/jsp/search/productdetail.jsp?sku=1503251&CMP=i-bf9f-00001000
When attaching the tape, make sure that there is minimal amount of overlap (if more tape pieces are
needed per layer) and make sure that it is not in the same place to prevent humps from which the
wire will slide down from.
With 0.25 mm wire there is space for approx. 110 turns per layer.
Feel free to use this information for experimentation. PDF here www.stanleymeyermedia.com
Thanks and all the best,