EAI Time Base Module Model 12.848 (1110 Variplotter© System) Manual
YEAR: 1963
ITEM: Manual/User's Guide
COMPANY: Electronic Associates Inc.
COUNTRY: U.S.A.
IN OUR COLLECTION: Yes
In addition to manufacturing analog computers such at the PACE TR-48, Electronic Associates Inc., (EAI) also manufactured output devices on which the user could read the results of their computation. Most analog computers of this era displayed the results on a simple voltage meter. However, you could also use an ocilliscope or a plotter. You can think of the plotter as the direct ancestor of the printer! You have probably seen simple versions of the plotter on television...the pen moving side to side on a long strip of paper during a lie detector test or recording the activing of an earthquake. See related material below for an example of a very simple plotter.
EAI manufactured the "1110 Variplotter" for which the module described in this manual was inteneded. See below for information on the TR-48 computer to which the Variplotter could have been connected.
This manual is titled Time Base Module model 12.848 (1110 Variplotter© System), publication number R800 7004 01. This version was printed in July 1964 but the document is dated from 1963.
Related Items
Related Item 1: Heath Servo-RecorderRelated Item 2: PACE TR-48
Documents
Documents for this item have not yet been scanned or not yet posted. There are a lot of pages...contact us if you have an immediate need. (Although there are not a lot of "immediate needs" for a 70+ year old computer!)
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OUR DEFINITIONS OF RARITY
One of a Kind: Only known existing item.
Exceedingly Rare: Only 2 to 10 known to exist.
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Available:Can be commonly be purchased.
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(For comparison: Many people consider the Apple-1 computer to be rare. As of 2025 there are 92 confirmed and probable Apple-1 computers.)
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