[Boatanchors] Japanese WW II Code practice oscillators

[J. Forster]

I think it's unlikely it was a transmitter, since all hardware was in short
supply in wartime, and a companion receiver would have been needed.

-John



W4AWM at aol.com wrote:

> > why the variable capacitor?
> >
> Not knowing the circuit, I can only surmise one of two things:
>
> 1.  That the unit was actually a small transmitter for code practice and the
> cap was for tuning, or
>
> 2.  That the cap was used to vary the tone frequency. Difficult to believe
> since this is normally accomplished by a pot.
>
> Who knows?
>
> 73,
>
> John,  W4AWM
>
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