KM4000

This is an article describing a low cost morse keyer from 1982, using CMOS logic

Ideal for storing and re-playing a perfectly formed message in morse code.

The article is reproduced in 7 pages together with a small PDF file of the whole article from the Feb 1982 RSGB Bulletin, sorry, I mean "Radio Communication", (or RadCom as it's now known). If I was old enough I'd mention "Experimental Wireless and the Wireless Engineer", or the later "T & R Bulletin", lots of copies of which I have.

I have quite a few RSGB Bulletins as I bought the lot..."Radio Magazines" from a local auction house unseen for £2. Two over-filled tea chests it transpired, with each years' issues neatly tied with nylon stockings... very odd.

For some strange reason organisations love to change their names, or the names of their publications. This can cost tens of thousands of pounds and can be the result of advice from a company hired to improve profits (also costing pots of money). The IEE is a good example, but Plessey, or more precisely the branch of that firm for whom I worked must have changed their name at least ten times. Confusion reigned whilst all the letterheaded stuff was changed, new visiting cards ordered and so on. It was not uncommon to receive a box of new cards only to discover a spelling mistake or even the wrong new company name. Maybe it's a sort of job creation scheme dreamed up by departments running out of work, because quite often, once a company or organisation reaches a particular size it's taken over and run by bureaucrats (or what I refer to as "bean-counters").

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or read the whole article as a PDF file

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