On Sat, 7 Apr 2012 23:29:06 -0500 Dieselhead <126die...@gmail.com> wrote:
> > Does 3500 Microfarad count as BHC? Yes. WHAT VOLTAGE RATING? > I can buy one on fleabay for $10 or 3 for $20. I was thinking maybe > buying 3 and using as many as needed. > I found 50 Amp bridge rectifiers. I figured I could use 2 in > parallel to be able to pass 50 to 70 amps. Paralleling rectifiers can be tricky and is not recommended (you can easily get thermal run-away, where one bridge is taking all the current). The original article said 70 V and 30 A. I'd use just one. You will need to make sure the rectifier has a good heat sink -- at 30 A, you will be dissipating roughly 60 W in the bridge and want to keep the bridge's temperature below 70 deg.C. or so. > So wire the variac to the rectifiers, (AC side) then hang the BHC > across the DC side of the rectifiers. Is that right? (DC to the > iron cathode and anode.) Yes, that is correct. Just remember both output leads will be hot with respect to ground. Craig _______________________________________ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
