"David Harmon" wrote in message
...
On Tue, 27 Dec 2005 05:58:18 GMT in sci.electronics.design,
(John Crighton) wrote,
This link tells you how to use the TL494 IC
http://focus.ti.com/lit/an/slva001d/slva001d.pdf

So why is the guy from TI showing NTE transistors for the power
switching? Nothing in the TIP line good enough?



Probably good enough for his measly 32 volts. I need to modify that
circuit to work on outputs of 90 volts and 6 volts.