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From: larry@kitty.UUCP (Larry Lippman)
Newsgroups: sci.electronics
Subject: Re: Old-fart electronics quiz (long)
Message-ID: <1901@kitty.UUCP>
Date: Sun, 2-Aug-87 12:42:55 EDT
Article-I.D.: kitty.1901
Posted: Sun Aug  2 12:42:55 1987
Date-Received: Sun, 2-Aug-87 21:44:18 EDT
References: <19929@ucbvax.BERKELEY.EDU>
Distribution: na
Organization: Recognition Research Corp., Clarence, NY
Lines: 44
Summary: Really amusing!

In article <19929@ucbvax.BERKELEY.EDU>, max@zion.berkeley.edu (Max Hauser) writes:
> Catching up on sci.electronics recently I enjoyed reading all the
> postings about magic-eye tubes, magamps, etc.  By coincidence, 
> I recently put together an old-farts' electronics quiz and 
> circulated it locally. A copy is attached for your amusement.

> 5. What is the "purple plague"?

	Undoubtedly the best question!  Ain't no way that anyone other than
an old fart will know the answer to this one!  And you certainly won't find
the answer in any book!
	
> 11. Can you specifically describe the commercial semiconductor devices 
> known by the following terms: 1N34, CK722, 2N107, 2N998, 2N1304, 2N2222,
> 2N3055, U222, uL900, uL958, uA703, uA709, SN7300 series, SUHL, CCSL, 
> HTL, ECCSL, Utilogic, COSMOS, Intel 1101, Intel 1702.

	You forgot the 2N35 (probably the first, most common germanium PNP
signal transistor) and the 2N255 (a very early and popular germanium PNP
power transistor in TO-3 package).  I'll never forget the first transistor
audio amplifier I built around 1961 using 2N35's; I was truly _amazed_ that
it exhibited gain above 100 kHz!
	The U222 FET from Siliconix was a truly amazing transistor.  In a
project which I did around 1970, I could get several hundred mW of RF
in the VHF frequency region using just one of these devices.

> 13. What is a thyratron? a magic-eye tube? a compactron?

	Don't forget the ignitron, skiatron, and carcinotron (probably
the most unusual name for a vacuum tube)...
	And the T-1 envelope wire-lead subminiature vacuum tube, like
the 5647.
	And "loctal" tubes, "doorknob" tubes, "lighthouse" tubes and
"acorn" tubes...

> 24. What is a couplate? a micromodule? the difference between
> thin-film and thick-film hybrid circuits?

	Don't forget "cordwood stacking"...

<>  Larry Lippman @ Recognition Research Corp., Clarence, New York
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