[Milsurplus] BC-9: Showing Her Colors

[Ian Wilson]

12B4 perhaps? Has c/t filament so works off 6.3 or 12.6v, low-mu,
lots of these available from scopes, regulated power supplies etc.

73, ian K3IMW

On Wed, Feb 1, 2017 at 5:57 PM, David Stinson <arc5 at ix.netcom.com> wrote:

> The BC-9 transceiver case has been restored
> to its 1920s unit markings.  I happy.
>
> https://goo.gl/photos/pwiUxo91WJkMZjF86
> https://goo.gl/photos/ak11PqDfhVHciAxa6
>
> 73 OM DE Dave AB5S
>
> P.S. Neil:  Did try the 6C4, but it's a low
> to zero-bias triode and wouldn't do the job.
> Still looking for something better.
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