| Switch IN |
Switch Out |
Delta F |
Cm (uF) |
Lm (H) |
| 10.000450 |
10.002680 |
0.002230 |
0.013379 |
0.018931 |
| 10.000450 |
10.002700 |
0.002250 |
0.013499 |
0.018762 |
| 10.000320 |
10.002460 |
0.002140 |
0.012840 |
0.019727 |
| 10.000310 |
10.002590 |
0.002280 |
0.013680 |
0.018516 |
| 10.000430 |
10.002740 |
0.002310 |
0.013859 |
0.018275 |
| 10.000480 |
10.002690 |
0.002210 |
0.013259 |
0.019102 |
| 10.000480 |
10.002680 |
0.002200 |
0.013199 |
0.019189 |
| 10.000470 |
10.002690 |
0.002220 |
0.013379 |
0.018930 |
| 10.000440 |
10.002700 |
0.002260 |
0.013559 |
0.018679 |
| 10.000430 |
10.002680 |
0.002250 |
0.013499 |
0.018762 |
|
|
|
|
|
| 10.000000 |
10.001609 |
0.001609 |
0.010619 |
0.023853 |
Note: The last record was taken from the sample data in EMRFD P3.18 and 3.19.
It was used to verify that my spread calculations were correct.
I wound up picking (from the top) xtals 1,6,7,and 8.
Note2: The values I found from doing the xtal matching and from determining
the xtal parameters were pretty close to the default values for
10Meg xtals given in the AADE filter design software. It turned
out not to be necessary to do this work but it was instructive to do
it anyway.
Note3: I built the circuit on page 3.19 of EMRFD to determine the crystal
parameters.
See also: http://www.hanssummers.com/radio/xtalchar/index.htm