[ARC5] Miller coils for converter - toroid substitutes.

[Kenneth G. Gordon]

On 20 Feb 2015 at 16:22, Kenneth G. Gordon wrote:

> > B-320-A   = frequency range 2100-6300kc (antenna coil)
> > B-320-RF = frequency range 2100-6300kc (antenna coil)

Using the values of 365 pfd at 2.100 MHz, the calculated value for the 
inductance of these two would be approximately 15.75 microhenry each.

Using toroid cores, and winding with #30 enameled wire, the following would 
work quite well:

T-44-7    58.5 turns, resulting in a "Q" of 69
T-37-7    70 turns     resulting in a "Q" of 61

I am suggesting the use of mix #7 since it has the best temperature 
coefficient and is recommended for oscillators.

I can also calculate these for use with #26 wire size if necessary.

Ken W7EKB