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Ceramiccapacitors tend to have high variation of capacitance with temperature. Matt D -----Original Message----- From: andrea ferrari <ferro1388@xxxxxxxxx> To: tesla <tesla@xxxxxxxxxx> Sent: Sat, Feb 21, 2015 10:28 pm Subject: [TCML] Re VTTC primary question hi all! uaooooooooooooOOOOO! Stefan very good work! Thumbs up :) today I have tried to follow yours opinion...and my project works well with 2.2 nF..... but I have noticed that the primary capacitor (three (6.8 nF 12kV)disc ceramic capacitor (blue color) in series (total= 2.2 nF 32kV) ) tend to become hot....why? I think that I have a proper insulation voltage (32 kV).....very strange....I suppose that in this way my system's perfomance decreases :( _______________________________________________ Tesla mailing list Tesla@xxxxxxxxxx http://www.pupman.com/mailman/listinfo/tesla _______________________________________________ Tesla mailing list Tesla@xxxxxxxxxx http://www.pupman.com/mailman/listinfo/tesla