[GreenKeys] Baud rate change

[steve bennett]

 Joe,
The easiest way to change the speed is use a single phase variable speed inverter.This would require no modification to the teletype.https://www.ebay.com/itm/121462713601?hash=item1c47bded01:g:HP4AAOSw8lxg7UK2

This device takes 60Hz input and you set the output to any frequency you like.
-Steve

    On Tuesday, August 31, 2021, 10:13:45 PM EDT, Joe Duszyński <joeduszynski1 at gmail.com> wrote:  
 
 I have a European machine that runs on 220v 50hz and the motor speed is 2000 rpm.
Of course on 60hz 220v it runs faster than 2000 rpm  I'm looking to change the motor to a DC motor but would also like to change the baud rate in the process to 45.5 vs the 50 it "was set at" the gear ratio appears to be 5 to 1  five revolutions of the motor to 1 rev of the transmitter/receiver shaft.
Can this be accomplished by using an 1800 RPM motor vs 2000 RPM??

This is the calculation I used to come up with 1800 RPM
22ms * 7.5 bits = 165ms
60000ms(in 1 minute)/165ms = 363.6363 RPM
363 RPM X 5(1:5gear ratio) =1818 RPM

______________________________________________________________
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 raleigh_ranger at yahoo.com  
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.qth.net/pipermail/greenkeys/attachments/20210901/7a48b07e/attachment.html>