RE: [TCML] Discharging series caps: an experiment

["Phil Tuck" <phil@xxxxxxxxxxx>]

Interesting Dave. If you had 33% of the charge left at 30v input, then assuming it scales up, that then becomes quite significant on a 2000v charged cap!

Regards
Phil

www.hvtesla.com

-----Original Message-----
From: tesla-bounces@xxxxxxxxxx [mailto:tesla-bounces@xxxxxxxxxx] On Behalf Of dave pierson
Sent: 03 February 2011 14:53
To: Tesla Coil Mailing List
Subject: [TCML] Discharging series caps: an experiment

Following on on the discussion of discharging series caps, i wandered into the shop and started rooting about.  Came up with 3 more or less identicalish 6uFd, 600v, ac caps, which, if memory serves came out of old ferroresonant supplies.

For convenience, safety, etc, used a 40VDC, variac adjustable, supply, with 50,000 odd uFd filter.

 wire caps in series.
 discharge all, individually.
 set PSU to 30vish(DC).
 charge caps.
 disconnect PSU.
 verify 10VDC across center cap.
 short _ends_ of string.
 STILL 10VDC, maybe a bit less across 'center' cap.

 Repeat until bored.
 That was using a random DVM: older fluke.  Trying an  older yet moving coil VOM, the voltage dropped 'fast'.

Yes, the voltages are low, however I'd think the results indicative...

dwp
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