28 Apr
2012
28 Apr
'12
1:37 p.m.
On 28 Apr 2012 at 19:34, Tony Duell wrote:
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
will automatically be discontinued, allowing for graceful
degradation.
--Chuck