Re: cap tester

• To: tesla-at-pupman-dot-com
• Subject: Re: cap tester
• From: Esondrmn-at-aol-dot-com
• Date: Tue, 28 Jan 1997 14:11:54 -0500 (EST)
• Subscriber: Esondrmn-at-aol-dot-com Tue Jan 28 22:53:11 1997

In a message dated 97-01-28 00:54:04 EST, you write:

<< 
 I need a capacitor tester to check the value of my 2 Tesla Coil rolled oil 
 filled capacitors.  The value should be about .008 uf.
 
 The only thing I own is a digital volt meter and a soldering gun.  My meter 
 does not check capacitors.  I don't want to spend $200.00 for a new meter 
 that checks caps.
 
 Does anyone know anyplace that sells low cost capacitor meters?  Does anyone

 know where to buy a KIT for a capacitor tester?  Does anyone have a circuit 
 for a capacitor tester that can be built from parts?
 
 My email address in http://www.gweaver-at-earthlink-dot-net
 
 Gary Weaver
  >>

Gary,

I don't know where to get a low cost capacitance meter.  I would think you
could determine the value by using a known capacitor that is maybe + or - 5%
and place it in series with the capacitor under test.  Then apply a small ac
voltage across the two in series and deduce the value by measuring the
voltage drop across them.

Ed Sonderman

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