Note
Popular Electronics, Nov 1957, p. 54. (new products announcement)
Popular Electronics, Aug 1958, p. 116.
This was Codetyper Laboratories' second attempt an a CW keyboard, after a version announced in 1952. This newer unit used only 12 tubes, as opposed to the 40 used in the first version.
The following is taken directly from the Popular Electronics announcement:
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This "miniature computer" will automatically key a radio transmitteras any of the keys of the typewriter-like keyboard are depressed. Speed is continually adjustable from 10 to 75 words per minute.
The unit has 12 miniature tubes, printed circuits and switches, and an internal power supply and keying relay. Operation can be a.c. or d.c.
The Codetyper is easy to set up, since the only connections are two leads which can be clipped across the hand key or directly to the transmitter. In addition, no typing skill is needed as one-finger operation is enough
for the most-used code speeds.
A built-in monitor allows signals to be heard as the instrument is operated. Besides the standard alphabet and numbers, there are also keys for such combinations as BT, AR, AS, and SK, as well as for the comma, period, query and error.
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Actual advertising for the unit did not appear until eight month later, in the August 1958 issue of Popular Electronics. This was followed nine months later by an ad in the May 1959 issue of QST. In both cases, the ad ran only once.It is interesting to note that in the 1957 ad the instrument was called model EBC, while in the 1958 ad it was called model EBC3 (the same model number as the original 1952 design). Whether or not these represent two distinct versions or simply a typo is not known. Both units appear outwardly identical.
