27 Aug
2002
27 Aug
'02
4:39 p.m.
On Wed, 28 Aug 2002, Tony Duell wrote:
Some US company (I forget who) made an ultrasonic
remote controlled
valve TV where the remote was essentially tuned metal bars that were
mechanically hit when the button was pressed. No electronics in the
handset at all. The receiver in the TV detected one of 4 (or so)
different frequencies corresponding to the 4 buttons on the remote, and
then operated a relay to trigger the appropriate function (I think
channel selection was done using an electromechanical stepping swtich,
etc).
Boy, I'd like to get my hands on one of those remotes.
Anyone know the exact model number of the TV that used it?
Sellam Ismail Vintage Computer Festival
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