FPGA VAX update, now DIY TTL computers

[Paul Koning]

>>>>> "Chuck" == Chuck Guzis <cclist at sydex.com> writes:

 Chuck> On 11/9/2005 at 10:46 AM Allison wrote:
 >> The serious limitation for tubes has always been the heat and
 >> power from the filament rather than the heat and power used for
 >> functional circuits.

 Chuck> So whatever happened to tunnel cathodes?  It was a very hot
 Chuck> topic in the 60's.

You mean tunnel diodes, a.k.a., Esaki diodes?  They were a passing
fad.

	paul