7 May
2021
7 May
'21
11:13 a.m.
On 5/7/21 2:36 AM, Curious Marc via cctalk wrote:
The IBM 7090 used a motor generator, IBM model 7618
apparently
http://ed-thelen.org/comp-hist/7090-PowerSupplyControl&Distribution-223…
I mentioned that about a dozen posts back:
The 7090 certainly used MG sets. From the "Power Supply and
Distribution Manual"
(http://bitsavers.org/pdf/ibm/7090/ce/7090%20Power%20Supply%20Control%20and%…,
page 5):
"The IBM 7608, a power converter or motor-generator set which converts
incoming 60-cycle three-phase (3?), 208v power to regulated 400-cycle 3?
208v power."