[GreenKeys] Model 28 Bell, electrical perspective

ad7i ad7i at ad7i.net
Sun Jan 23 16:12:52 EST 2022


Ugh!    Shaded Pole, not shaded poll.  sorry.

On Sun, Jan 23, 2022 at 4:06 PM ad7i <ad7i at ad7i.net> wrote:

> Greetings All --
>
> I recall from previous GreenKeys discussions that the electric bell in the
> model 28 cabinet is intended to be driven with 120 VAC 60 Hz (normal house
> AC power).
>
> Does anyone know if electromagnet in the bell assembly makes use of a
> shaded poll?   I assume that the duration of the power applied to the bell
> electromagnet is determined by the operation of the stunt box (i.e, does
> not exceed the time to receive one character, about 163 ms at 60 WPM, about
> 98 ms at 100 WPM).
>
> Is there a possibility of burnout of the bell electromagnet coil if the
> power was applied to the electromagnet for an extended period of time?
>
> Thanks,
>
> Paul, ad7i
>
>
>
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