28 Jan
2013
28 Jan
'13
3:57 a.m.
On 01/27/2013 06:43 PM, William Donzelli wrote:
I have here an odd 7400 TTL chip - the prefix is TG.
TG74S00J. Who was
this? Who made TG74xx TTL? It looks somewhat like an old Sylvania
ceramic DIP from the early 1970s. I have perhaps thought Transitron,
but it is not. And there is no logo, other than a plain looking T.
My Moto 1968 interchangeability guide shows the TG7400E was a Transitron
product.
Does the "T" have a little curl on the left side of the crossbar?
That'd be Transitron.
--Chuck