2 Feb
2007
2 Feb
'07
2:34 p.m.
On 2 Feb 2007 at 15:41, Jim Isbell, W5JAI wrote:
No, it was a 7070, "IBM seven oh seventy",
and it used hundreds if not
thousands of 12au7s or 12ax7s don't remember which it was. And it was
definitely NOT solid state.
Jim, are you sure you're not thinking of the 650? The 7090 was
definitely all solid-state, as was the 7080. The most detailed web
account of the 7070 I can find here indicates that the machine was
built up of SMS modules (like the 7090):
http://www.multicians.org/thvv/7070.html
Cheers,
Chuck