On Wed, Aug 22, 2007 at 12:09:02AM -0400, Gene Heskett wrote: > Unless I can con the local telco out of one of their 75,000uf x 75 volters, > its probably going to have to do w/o. I went googling for big caps last > night and came up empty, everything is lower voltage for transistors now.
You can stack lower voltage capacitors, with a bleed resistor in parallel with each one. The resulting voltage divider equalises the PD across the capacitors. (If you make the resistors equal. :-) Even something like 10k should do the trick, so long as you're not using leaky electrolytics. If they've been on the shelf for a long time, the dielectric can be reformed by applying a low voltage from a modest impedance, before use. (I just use my ancient multimeter, on the ohms range, both 'cos it's handy, and because you can see the leakage current dropping. N.B. On mine you have to swap the leads, because it happens to feed out reversed polarity on the ohms range.) Erik ------------------------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now >> http://get.splunk.com/ _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
