Tony Duell wrote
Brent Hilpert wrote:
Chuck Guzis wrote:
Personally, I'd be a lot more impressed if someone used an Edison wax
cylinder recording to load data into an Apple IIe.
But I impress easily...
Ya know, I have the equipment to do that, except the piezo transducer that
drives the needle in the wax recorder is cracked.
Piezo transducer? To do this properly you have to use an electromagnetic
driver for recording and a carbon microphone for reproduction. Anything
else is cheating.
.. To do it properly, only acoustic energy is permitted, no electricity allowed.
As it is, the wax recorder I have is an office dictating machine dating from
the 1940's or perhaps 1930's.
The crystal piezo transducer was used for both record and playback.
It contains just two tubes and is conceptually very simple, but that crystal is
a very specialised part that - while perhaps not an insurmountable problem - is
not going to be particularly easy to fabricate today in a one-off instance.