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From: del@thrush.mlb.semi.harris.com (Don Lewis)
Newsgroups: sci.electronics,sci.chem
Subject: Re: Has anyone made any homemade valves (tubes), semiconductors ...
Message-ID: <1990Aug1.081830.15979@mlb.semi.harris.com>
Date: 1 Aug 90 08:18:30 GMT
References: <872@massey.ac.nz> <972@flash.UUCP> <1990Aug1.023331.20141@loft386.uucp>
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In article <1990Aug1.023331.20141@loft386.uucp> mhughes@loft386.uucp (Mike Hughes) writes:
>>And how about batteries with household chemicals (ie not sulphuric)
>
>See If you can find a copy of "Things a Boy Can Do With Electricity" by
>Alfred Morgan (1951).  This has plans for batteries, rectifiers and 
>photoelectric cells, all in jars with very basic chemistry.  Nothing with
>gain, however.
>
>Lots of other delightful things too!

I seem to recall reading "The Boy Electrician" by the same author many
years ago.  It had lots of plans for spark coils and tesla coils, told
how to use X-ray tubes :-O, etc.  He also had some more recent books
on how to build things intercoms and audio amps (5 watts, wow!).
--
Don "Truck" Lewis                      Harris Semiconductor
Internet:  del@mlb.semi.harris.com     PO Box 883   MS 62A-028
Phone:     (407) 729-5205              Melbourne, FL  32901