graphite resistance controls

[svetengr at earthlink.net]

At 12:23 PM 10/10/97 -0800, you wrote:
>I'd say one big exception would be Buchla who used touch keyboards for most
>of his machines.  I don't know if he was the first to use them, though.

Don't forget--I said "before 1960"......as far as I know, Buchla's first
product went on sale in 1963-64. In the 1960s, EM was a market, before that it
was a weird and obscure subculture with very few actual manufactured
instruments. A few people built experimental touch keyboards in the '50s,
usually with no publicity. (side note: it's very easy to implement this
with thyratron tubes--they are perfect, very sensitive and totally immune
to damage from ESD.)

The original RCA Theremin, for example--it's the best known, yet I hear
that total production was maybe 200-500 units in 1928-29.

(Today, an original RCA can sell for upwards of $10,000.)