core-logic clock / was Re: TTL homebrew CPUs
cclist at sydex.com
Mon Jul 16 15:48:53 CDT 2007
On 16 Jul 2007 at 11:43, Peter C. Wallace wrote:
> Arent there some electronic organ circuits that use NE-2s that way as
> synchronised oscillators?
> Seems to me a grid cap of the right type was used for the sleeve.
I do remember seeing a bunch of NE-2s used on the pedalboard of an
old Lowery organ as sort of a priority encoder--only the lowest note
would sound if more than one note was pressed.
I don't recall the circuit however. But it was a more-or-less full-
sized pedalboard--about 30 notes or so.
This does relate to old computer architectures--many electronic
organs use flip-flops and the like.
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