Once upon a time - 35 - 45 years ago - I had the pleasure (sic) of working with:
https://archive.org/details/TNM_Versatec_printers_and_plotters_-_Versatec_a…
for temperamental plots of telemetry traces
https://www.ebay.co.uk/itm/404623414575 manual for sale
EPC Graphic Recorder 1600 Series product data see
https://mitmuseum.mit.edu/collections/object/2014.028.0253.01
The "gram writers"
https://www.usni.org/magazines/naval-history-magazine/2021/february/66-year…
probably use a near relative
Magic paper, two styli on a belt (one burning, one returning), pour in 1+? bit data and
hope to see what you are looking for
I built an interface box for an EPC 1600 a few years before the technology was superceeded
(by thermal "fax" printers)
Both technologies had the great merit of producing long time histories, difficult to store
by excellent for analysis
Martin
-----Original Message-----
From: Van Snyder via cctalk [mailto:cctalk@classiccmp.org]
Sent: 17 February 2025 21:08
To: cctalk(a)classiccmp.org
Cc: Van Snyder <van.snyder(a)sbcglobal.net>
Subject: [cctalk] Re: Elliott Algol
On Mon, 2025-02-17 at 17:35 +0000, Chuck Guzis via cctalk wrote:
> Teledeltos paper had a silver layer over a carbon
layer, and a spark
> blew off the silver to expose the black carbon. (I think that's how
> it worked, I haven't seen this stuff in decades!) It was used in
> early machines for sending weather facsimile maps, for instance.
I think the printer beside the B220 in the Caltech Boothe computer center was probably
mistakenly called a teledotis printer. It definitely deposited soot on the paper, and then
thermally fused it.