Actually there’s nothing special for TTY about this scope. Other than the label that is. Just typical H, V, and sweep. No delay or character start trigger.

It’s a convenient rack mounted item but I think only truly useful in an FGC-5 system where you could get sync signals from the 4-channel time division multiplexer.

On Sat, Jan 15, 2022 at 12:23 PM Eric Garner <garnere@gmail.com> wrote:

I found this Teletype oscilloscope at a local surplus shop:

https://photos.app.goo.gl/4f2QLgFmnH9tMeYE6

It looks like it was a part of the AN/FGC-5 set for the Navy:

https://www.navy-radio.com/rtty-mux-fgc5.htm

The owner of the shop (surplusgizmos.com) is usually willing to negotiate prices if someone is interested.

Eric KI7LTT
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