13 Aug
2013
13 Aug
'13
11:06 a.m.
On Tue, Aug 13, 2013 at 06:15:41AM -0500, Chris Elmquist wrote:
Interesting pictures. I am curious why machines of
this era often have
a "VOLTAGE" adjustment on the front panel? Was it really neccessary
for an operator to adjust some voltage setting as the machine ran thus
requiring that adjustment to be easily accessible on the front panel?
I dimly remember (probably from the Gordon Bell book?) that KO+crowd
were weirdly obsessed (or maybe normally obsessed given the known failure
modes of the time) with marginal testing. So they liked to crank things
up to the high and low limits every so often to find parts that were about
to stop working at the nominal voltages. So I think that's what that is...
John Wilson
D Bit