Question for the List: I recently bought an MFJ-4125 switching power supply to use with my K3/100 transceiver. While otherwise satisfactory, the MFJ-4125 has an objectionably- noisy fan.
On my MFJ-4125, over half of the fan exhaust openings on the back of the supply are blocked by the fan's motor housing, which makes me believe that the power supply originally was designed for a different fan (perhaps a quieter one), and this fan is an expedient substitute by MFJ. I would like to know if other users also are bothered by the MFJ-4125's fan noise, and what they have done about it. Have you substituted a quieter fan? Have you installed a series resistor to slow down the fan, and with what result? Have you installed a thermostatic switch to run the fan only when needed? Or have you given up and simply bought a quieter power supply? Any advice would be appreciated. 73, John, no8v _______________________________________________ Elecraft mailing list Post to: Elecraft@mailman.qth.net 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
