19 Jun
2011
19 Jun
'11
11:41 a.m.
On 19 Jun 2011 at 14:07, Dave McGuire wrote:
You had PROMs? When I was young, all we had were
diode arrays!! ;)
When I was young, (semiconductor) diodes came in white ceramic
packages with metal endcaps and were usually germanium. No, the PROM
was for a production design, ca. 1983. It was expensive
(particularly if you goofed), but it eliminated quite a few
packages.
--Chuck