[hpsdr] Alex TX board T1 and T2 Primary

[Graham / KE9H]

Don:

The teflon insulation was recommended for manufacturing reasons. It is more
rugged and does not melt at soldering temperatures.

You can use any kind of 18 gauge or larger wire if you want, just make sure
nothing important is touching or shorted after assembly.

--- Graham / KE9H

==

On 3/24/2013 6:03 AM, dlwaddel at netzero.net wrote:
> ***** High Performance Software Defined Radio Discussion List *****
>
> Would someone explain to me why the primary of T1 and of T2 of the Alex TX board requires teflon insulated wire versus PVC insulated or enamelled wire? The "Toroid Manufacturing Table" says "Plus a separate single turn winding, #18 teflon insulated thru center"
>
> FWIW, the parts list states the primaries are wire staples.
>
> Teflon insulated wire is quite costly for the mere four inches needed for T1 and T2 and I'm hoping I can use PVC insulated or bare copper wire that I have on hand.
>
> Thanks,
> Don K3DLW
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