[GreenKeys] Looking for teletype BRPE punch and CX reader

[Eric Moore]

Those roytrons are serious business! There are some limited docs available
on bitsavers.

http://bitsavers.org/pdf/roytron/

I see nothing about a reader/punch, but am excited to see what else turns
up! Thank you so much for digging this stuff up!

-Eric

On Mon, Jun 22, 2020, 17:31 Jones, Douglas W <douglas-w-jones at uiowa.edu>
wrote:

> Here's yet another Roytron device in my "needs a good home" pile.  It's a
> reader-punch with interface electronics.
>
> I could barely lift it down off the shelf to photograph, so shipping will
> cost more than an arm plus a leg.  On the up side, it is a reader-punch,
> which means, no powered take-up reel or any of that, but you get reader and
> punch in one piece.
>
> And, it sits on an interface box of some kind, with built-in power
> supplies for the annoying high voltages needed by typical
> largely-mechanical tape equipment, plus local power for the electronics.
> Who knows what the electronics does, that big 40-pin chip just might be a
> UART, and there's a DB25 connector on the back that could be an asynch
> port.  Wishful thinking doesn't make things work, though, so someone will
> need to spend many happy hours working out what's really going on here.
>
>            Doug Jones
>            jones at cs.uiowa.edu
>
>
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