[Boatanchors] National SW-3 Coil Forms Wanted

Allan Culbert radio.k0al at gmail.com
Tue Aug 30 17:23:33 EDT 2022


The National 6 pin configuration for coils used in the SW-3 is NOT the same
as what 6 pin tubes used which is what appears offered on that Atlantic
site.

Al, K0AL

On Tue, Aug 30, 2022 at 5:15 PM Paul Christensen <w9ac at arrl.net> wrote:

> See link below for a choice of 4, 5, or 6 pin forms, constructed much like
> the original National R-39 forms:
>
> https://www.ebay.com/str/atlanticelectro?_trksid=p2047675.m3561.l2563
>
> Not exactly inexpensive if building a full coil set, but there they are.
>
> Paul, W9AC
>
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