24 Jun
2013
24 Jun
'13
9:04 p.m.
On 6/24/2013 10:00 PM, dwight elvey wrote:
If the 9VAC is only used to produce the +volts for the
serial
chips, there is no real reason to use AC. A +15VDC would most
likely work fine.
One could use a cheap small switcher.
Dwight
As previously noted in my original post, the TOD clock uses the 50/60
hz
to update the TOD time. Without it on the 9VAC lines, the TOD clock
will not run. Some apps will not function as a result.
Jim
--
Jim Brain
brain at jbrain.com
www.jbrain.com