Yes, I expect a voltage regulator would work better than a resistor to drop the voltage. Since the fan motor draws more current at startup than when it is running, a contant-voltage source should give more-reliable startup at a lower voltage.
But you probably still want to use a thermostat or some other method to switch the fan to full voltage if things get too hot. Al N1AL On Tue, 2008-08-05 at 05:06, Kenneth A. Christiansen wrote: > I used a 5 volt regulator on my MFJ 4225 to slow down the fan. This allows > the fan to start reliably at any voltage. I have run mine and my K2-100 this > way for at least 5 years with no problem on SSB, CW and DIGITAL. > > 73 > Ken W0CZ > > Bill NZ0T Wrote > <As I'm not a very technical person I just used a couple of resistors in > <parallel to slow the fan down in my 4225. I can't remember the values this > <early in the morning but it seems to be working just fine. The supply does > <run a little warmer but not hot and the fan is no longer heard. > < > <Bill NZ0T > > _______________________________________________ > Elecraft mailing list > Post to: [email protected] > You must be a subscriber to post to the list. > Subscriber Info (Addr. Change, sub, unsub etc.): > http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/subscribers.htm > Elecraft web page: http://www.elecraft.com _______________________________________________ Elecraft mailing list Post to: [email protected] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
