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Re: Coil Formers.



COIL MEASUREMENTS
*****************
(b)  Coils of h/d = 3,4 with disks mounted at different heights.

(i) h/d = 4 (closewound)
NOTE: the first column has the coil + disk mounted 6.5" closer to the
      floor. See Test Notes for winding heights off floor.

                              HEIGHT
         |   0.7"     |   0.7"     |     7"     |   11.3"    |   16.9"    
DISK(mm) | f     Q    | f       Q  |  f      Q  |  f     Q   | f     Q   
-------------------------------------------------------------------------
200      | 216.6  349 | 217.4  368 | 195.8  332 | 188.4  294 | 181.6  259
300      | 200.4  328 | 201.2  347 | 182.0  337 | 174.9  312 | 168.6  290
400      | 207.7  301 | 208.5  306 | 169.6  346 | 163.4  308 | 157.8  292
500      | 167.2  328 | 167.9  329 | 157.5  342 | 152.6  331 | 147.8  314
600      | 153.3  313 | 154.0  302 | 146.5  325 | 142.7  324 | 138.8  301
686      | 142.9  297 | 143.6  312 | 137.9  320 | 134.9  313 | 131.5  292



(ii) h/d = 3 (spacewound)
NOTE: the first column has the coil + disk mounted 6.5" closer to the
      floor.
                              HEIGHT
         |   0.7"     |   0.7"     |     7"     |   11.3"    |   16.9"    
DISK(mm) | f     Q    | f       Q  |  f      Q  |  f     Q   | f     Q   
-------------------------------------------------------------------------
200      | 260.9  296 | 262.1  332 | 232.2  283 | 222.6  262 | 214.4  249
300      | 237.6  313 | 238.6  306 | 213.9  289 | 205.4  267 | 198.0  244
400      | 214.5  278 | 215.4  287 | 197.7  260 | 190.6  250 | 184.2  239
500      | 193.5  254 | 194.4  249 | 182.5  257 | 176.9  256 | 171.9  232
600      | 176.1  238 | 177.2  253 | 169.0  248 | 164.9  232 | 160.8  196
686      | 163.5  221 | 164.5  166 | 158.5  244 | 155.6  232 | 152.2  217