29 Apr
2012
29 Apr
'12
12:42 p.m.
On 28 Apr 2012 at 19:34, Tony Duell wrote:
I don't recall that. If it's for the fan motor, I don't see any reason
why it coul;dn't be driven by a DC motor, or indeed by some form of heat
engine. Provided the device doesn't overheat (that is that the airflow
is sufficient) it should be fine.
Yes, but as there;'s only 1 Vff pin
(presumably referenced to
ground), you need a floating DC supply to do that. That's alomost as
hard to get as a true AC supply in a lot of cases.
Well, note that there's a requirement for 115VAC anyway. I guess the perfect way is to couple a small alternator to the 6
foot fan motor
needed for cooling. That way, if the fan fails, the filament supply
Well, it's _a_ way....
-tony