[Amps] Plate Choke Resonances

Tim Long tlong8 at earthlink.net
Thu Jan 28 18:23:15 PST 2010


Thanks Jim.  Didn't measure inductance.  Followed the data that Carl 
provided as closely as I could, turn-for-turn.  Used AWG #28.  I 
expected to get a clone of the Ameritron.  Don't know if I did or not.
73, Tim, W2UI

James Colville wrote:
> What is the measured inductance?  What sixe wire did you use?
>  
> 73
> Jim W7RY
>
>
>  
> On Thu, Jan 28, 2010 at 8:09 AM, Tim Long <tlong8 at earthlink.net 
> <mailto:tlong8 at earthlink.net>> wrote:
>
>     Hello All,
>     I just finished winding a homebrew Ameritron-copy plate choke
>     using the
>     details provided by Carl.  Thanks to Carl's patience and magnifying
>     glass.  Shorting the choke and with a grid dip meter, I observe
>     resonances at 14.380MHz, 18.200MHz, and 41.5MHz.  I assume that the
>     resonance at 14380 will be problematic, or will the resonance
>     shift far
>     enough away once the choke is installed?  Experience please.  Thanks &
>     73, Tim, W2UI
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