On Thursday 31 December 2015 13:10:01 Gene Heskett wrote: I've lost track of the thread where we were discussing bleeder R's for big power supplies.
In any event, when it all started, I ordered a pair of 250 ohm 200 watt resistors from someplace in China, very early in that thread. It's been so long that when I got a long parcel out of the mailbox, I couldn't imagine what it was as its been at least 6 or 7 weeks back. I had plans when I ordered them, of switching them across the supply when the power relay opened. That would be a 125 watt heat pulse, but would drain the supply a lot faster than all the 5k's on it now. I could turn them on with a hexfet in the low side, but I'd need to maintain the gate long enough to drain the big caps, something I've not worked out yet. Food for thought when I am bored . Or perhaps put a brass footrail under the computer's position, put them under it, along with a std switch to turn them on for a foot warmer? That would be nice in this <10F weather. :) My charge-pump-detector I have made 4 of, but I had to figure out that I had to dunk all that scotch tape binding up those 10 ea 2SK3264's in some dirty water to keep the static down as I blew one of them before it was inserted in the board. Dumbassed vendor needs a 10 minute lesson (delivered using a 2 foot oak 2x2) in the care and feeding of hex/mosfets, no static foam or wire wrapped around the legs to keep from blowing the gates. I know, you can't fix stupid. Cheers, Gene Heskett -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) Genes Web page <http://geneslinuxbox.net:6309/gene> ------------------------------------------------------------------------------ Site24x7 APM Insight: Get Deep Visibility into Application Performance APM + Mobile APM + RUM: Monitor 3 App instances at just $35/Month Monitor end-to-end web transactions and take corrective actions now Troubleshoot faster and improve end-user experience. Signup Now! http://pubads.g.doubleclick.net/gampad/clk?id=267308311&iu=/4140 _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
