"N_Cook" wrote in message
...
Under therrmistor control. If at power up the DC voltage is too low to
start
the fan can you always rely on the fan starting at some point with a
slowly
increasing voltage or does it depend on the make/design of fan ?





Some Studiomaster Powered Mixers used to adopt this method - the fan would
sit there shaking like a ****eting dog, often making various squeeks, before
finally getting going.
It was driven by a TIP32.

I have no idea whether they specifically chose a fan that would always start
though.



Gareth.