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Article #623491Re: A must have: VARIABLE BREAKPOINT, VARIABLE SLOPE DIODE FUNCTION GENERATOR (EAI 1964)
From: Quadibloc
Date: Sun, 13 May 2018 01:49
Date: Sun, 13 May 2018 01:49
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3010 bytes
On Saturday, May 12, 2018 at 12:59:57 PM UTC-6, han...@bbs.cpcn.com wrote: > What is a "vari-typer"? This is a good page: https://oztypewriter.blogspot.ca/2012/11/on-this-day-in-typewriter-history-raaks.html Basically: It has interchangeable type elements, like an IBM Selectric. It also does proportional spacing, in four sizes. But the unit system is crude, similar to that on an IBM Executive typebar typewriter, but with the 5-unit characters squeezed to only 4 units. Unlike a Selectric, it isn't as similar to a regular typewriter. It has a "three-bank keyboard"; that is, it has fewer keys, and you have to use a third shift to type numbers. Some old typewriters were like that too. But unlike a normal typewriter, the keys on a Vari-Typer needed a lot of force to press, and so it wasn't comparable to a normal typewriter (i.e. an Underwood 5 manual, let alone an electric typebar typewriter) the way a Selectric was. This page pictures an older one at the top, but the ones I had are pictured further down: http://site.xavier.edu/polt/typewriters/varityper.html This page pictures a very old one only: http://americanhistory.si.edu/collections/search/object/nmah_849997 This page pictures later printing technologies made by the same company, as well as the kind of Vari-Typer I meant: https://oztypewriter.blogspot.ca/2015/01/varitypers-century-of-typesetting.html John Savard
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