[GreenKeys] Reperforator and TD gear set needed

E. William Horne w4ewh at outlook.com
Sat Jul 2 12:50:31 EDT 2022


On 7/1/2022 12:12 PM,"SK Campbell" <campbellsk at comcast.net> wrote:
> Hello all:
>
> Unfortunately, my stand-alone Model 28 Typing Reperforator (Type LPR) 
> and a
> Transmitter Distributor (LDX) units are running with 100WPM gears.

This is a bit of a kluge, but I've used it in the past, and it served 
the purpose.

You can use a PC: to shift the speed of the serial ports, and write a 
small routine to transfer characters from one serial port to another.

You'll need to learn how to change the speed of the serial port chips: 
the machine I used had Intel 8250 UART's, and I had to reload the speed 
setting before anything else, and reset the word length. If your OS 
doesn't allow you to change the word length of the serial ports, you can 
just copy the serial data from one port to another, and fill the extra 
bits with 1's, so that, to your Model 28, it looks like Baudot with a 
very slow typist at the keyboard.

FWIW. YMMV.

Bill, W4EWH




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