[GreenKeys] Are there any telephone switchers in the group?

[Eric Moore]

I have a 555 switchboard and a bell 101 modem I am playing with to do
telex.

I wish I had some step by step or any CO gear, since I have a line
simulator I have not bothered setting up the switchboard.

If anyone is in the Chicago area hit me up, I have semi regular open houses.

-Eric


On Mon, Feb 17, 2025, 3:47 PM Jim <kd9do.jim at gmail.com> wrote:

> When I went to college I operated the college telephone cordboard for
> extra money.  All manual, even party lines with special rings like two
> short and one long.  I enjoyed every minute of it!  So much so I spent 20+
> years in the telephone industry.
>
> Since there is so much interest in the old analog electro-mechanical phone
> network, check out this Youtube site by Evan Doorbell who made thousands of
> hours of recordings of the network when he was in high school.
>
> https://www.youtube.com/@evandoorbell4278/featured
>
>  And finally for a bit of nostalgia this link will take you to a *stereo*
> recording of the sounds of a step CO.  Here is the text that accompanied
> the file.
>
> Inside a Bell 355A step CDO in Brunswick, Md (March, 1984)
> Phone tripper Trace McCall sent us a recording he made inside a step by
> step central office, and he promised to send us more.  The pulse repeating
> followed by the loud chattering was a CAMA trunk MF sending to the
> Frederick Tandem office.  At the beginning of the segment, in the
> background you can make out a "snoring" sound. That's a linefinder group
> running a switchman-started test.
>
> This is the link ==>
> https://1drv.ms/f/c/1f49f868da1c1566/ErroV6tR7aJIpaPd26gaqQoBf6eS19YmVU7Zupsshmv63Q?e=b9gv8e
>
> Jim - KD9DO
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