[ARC5] [External Sender] solid state vibrator basics

[Bill Henderson]

Please see attached for another approach

 - Bill H. / va3hwa



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02/09/21,
10:15:28 AM

On Mon, Feb 8, 2021 at 7:29 PM J Mcvey via ARC5 <arc5 at mailman.qth.net>
wrote:

> This not specific for your vibrator, but the concept works for any of
> them, you just have to wire to the correct pins for your particular type.
>
> The synchronous contacts ( if any) are replaced by rectifier diodes ( in
> the correct polarity , of coarse).
>
> The oscillating frequency is approx 110 Hz
>
> I used BUZ11 mosfets with good results.
>
> The zeners can all be adjusted to 12V , since the mos gates are good to
> 20V and the 4047 is 18v max.
>
>
>
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