[GreenKeys] Model 15 Governed motor, tuning fork.

[Henning Treumann]

The simple way amateurs did in Germany back in the old RTTY days was to
count the printed
characters in 10 seconds.
60 characters (almost one line) = 45 baud
67 characters (one line) = 50 baud

Hit one letter key and then repeat key (if available).

73,
Henning DF3OE
i-Telex 925302 TREU D


Am Mo., 29. Sept. 2025 um 09:31 Uhr schrieb David Wade <dave.g4ugm at gmail.com
>:

>
>
> On 29/09/2025 03:55, Harold Hallikainen via GreenKeys wrote:
> > Does the line frequency make any difference? We are going for the same
> RPM
> > no matter what the line frequency. So, I suspect the same tuning fork
> > would be used anywhere (for the same bit rate).
> >
> > Most of my stuff has synchronous motors, but one is governed, but I have
> > not had to touch it.
>
> I have done a lot of fiddling with Creed machines with governed motors
> and found that a small optical tacho such as this:-
>
> https://ebay.us/m/RKD3ol
>
> is a great aid to setting the speed.
>
>
> > Harold
> > https://w6iwi.org
>
>
> Dave
> G4UGM
>
> ______________________________________________________________
> GreenKeys mailing list
> Home: http://mailman.qth.net/mailman/listinfo/greenkeys
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:GreenKeys at mailman.qth.net
>
> >>> Jordan Spencer Cunningham's GreenKeys Search Tool:
> https://teletype.net/gksearch
> >>> 2002-to-present greenkeys archive:
> http://mailman.qth.net/pipermail/greenkeys/
> >>> 1998-to-2001 greenkeys archive:
> http://mailman.qth.net/archive/greenkeys/greenkeys.html
> >>> Randy Guttery's 2001-to-2009 GreenKeys Search Tool:
> http://comcents.com/tty/greenkeyssearch.html
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to df3oe.henning at googlemail.com
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.qth.net/pipermail/greenkeys/attachments/20250929/6c16d568/attachment.html>