[Amps] Plate Choke Resonances

Bill, W6WRT dezrat1242 at yahoo.com
Fri Jan 29 08:36:33 PST 2010


ORIGINAL MESSAGE:

On Fri, 29 Jan 2010 08:34:40 -0500, "Carl" <km1h at jeremy.mv.com> wrote:

>The Ameritron is 225uh and the insulation thickness has to be taken into 
>account. Use a micrometer to measure the bare wire and then with the 
>insulation.

REPLY:

To make an exact duplicate you also have to take the kind of
insulation into account. Different types have different dielectric
constants and will change the amount of capacitance between turns,
thus changing resonances. 

73, Bill W6WRT


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