Dennis, I may have a suitable resistor in my stash if you can't find one.
I just short my cap to ground through a grounded 100ohm 100w resistor on the end of a insulating stick when im done for the day. Putting a gator clip across it for storage. Been working for me for years.
Contact me off list of you want me to look for a resistor for you.
-Jay
------ Original message------From: dennis otmaskin Date: Sun, Feb 11, 2018 4:37 PMTo: tesla@xxxxxxxxxx;Cc: Subject:[TCML] Fwd: Bleeder resistor for Maxwell cap
Subject: Bleeder resistor for a Maxwell capThanks guys for your helpful responses. To answer Gary's question, myMaxwell cap is .03uF (not .003uF which was a typo in my earlier email).Here are the key points I take away from your suggestions: - To keep it simple, I'll attempt to duplicate the values of Gary'sbleeder resistor configuration: 78Meg, 1/4W. Since this works for his.04uF cap it should also work for my .03uF cap...right? - I'll use 2 or more separate sets of bleeders across the cap to act as asafety back up. - I will also use use a bang stick each time for added safety measure.I do have a question: in lieu of putting together a string of 39 resistorsas Gary has, I'd like to see if I can safely get the same value in a singleHigh Voltage resistor. I've tried checking the product specs on DigiKey's& Mouser's websites, but honestly it got a little confusing for me with allthe additional specifications to choose from. Could one of you suggest aspecific type of resistor that would do the job? If possible a part numberwould also really be helpful.Thanks, Dennis MAOn Sat, Feb 10, 2018 at 3:01 PM, dennis otmaskin wrote:>>>> Begin forwarded message:>> *From:* Gary Lau > *Date:* February 7, 2018 at 10:30:18 PM EST> *To:* Tesla Coil Mailing List > *Subject:* *Re: [TCML] Bleeder resistor for Maxwell cap*> *Reply-To:* Tesla Coil Mailing List >> Hi Dennis,>> The specs for a bleeder resistor are anything but critical. Was your cap> .003 uF or .03uF? I use a .04uF cap. I constructed a bleeder out> of thirty nine 2.0Meg 1/4W resistors (78Meg total). I calculated that with> my .04uF cap, the time constant (R*C) is 3.2 sec. Five times the time> constant is generally regarded as how long it takes to completely discharge> the cap. My bleeder is pictured here, 5th photo from the top:> http://www.laushaus.com/tesla/sync_gap.htm> 1/4W resistors are normally not recommended for HV, but having so many in> series keeps the voltage per resistor to acceptable limits. The important> thing is to make sure that it's soundly constructed and wired to the cap.> 78 Meg is higher than most multimeters can read so you need to be creative> in verifying that sub-sections of the series chain are intact, thereby> implying that the entire chain is wired intact.>> source=link&utm_campaign=sig-email&utm_content=webmail>> Virus-free.> www.avg.com> source=link&utm_campaign=sig-email&utm_content=webmail>> <#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>>> On Wed, Feb 7, 2018 at 1:40 PM, dennis otmaskin > wrote:>> I would appreciate some guidance on the proper bleeder resistor for a 35kV>> .003uF Maxwell pulse capacitor (#367667) or where I can go to find this>> info. Thank you!>>> Dennis, Hopkinton MA>> _______________________________________________>> Tesla mailing list>> Tesla@xxxxxxxxxxxxxxxxxx>> https://www.pupman.com/mailman/listinfo/tesla>>> _______________________________________________> Tesla mailing list> Tesla@xxxxxxxxxxxxxxxxxx> https://www.pupman.com/mailman/listinfo/tesla>_______________________________________________Tesla mailing listTesla@tedward.pupman.comhttps://www.pupman.com/mailman/listinfo/tesla
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