RE: [TCML] NST Measurements

["Lau, Gary" <Gary.Lau@xxxxxx>]

Oops - my bad.  Yes, need a 500K/450W resistor.  Must have been thinking about my 15/60 unit at the time.

Regards, Gary Lau
MA, USA

> -----Original Message-----
> From: tesla-bounces@xxxxxxxxxx [mailto:tesla-bounces@xxxxxxxxxx] On
> Behalf Of Jim Mora
> Sent: Thursday, January 22, 2009 12:28 AM
> To: 'Tesla Coil Mailing List'
> Subject: RE: [TCML] NST Measurements
> 
> Hey Gary,
> 
> Why not dope some distilled water with copper sulfate and make a water
> resistor? Jim Lux has a good write up on it. Wouldn't the power be 450watts?
> 15000v/500000ohm =30ma I^2* 500000=450 watts?
> 
> Jim Mora
> 
> -----Original Message-----
> From: tesla-bounces@xxxxxxxxxx [mailto:tesla-bounces@xxxxxxxxxx] On
> Behalf
> Of Lau, Gary
> Sent: Wednesday, January 21, 2009 8:12 AM
> To: Tesla Coil Mailing List
> Subject: RE: [TCML] NST Measurements
> 
> Bart wrote:
> > My measured output at 120.2V input was 16390 which is a voltage ratio of
> > 136 (not 125 as spec'd).
> 
> I wonder what the secondary voltage would measure if it were loaded with a
> 30mA load?  Unfortunately that requires a 500K/750W resistor - not something
> I have in my junkbox.
> 
> How linear is the 136X forward ratio over the 0-120V input range?  Could a
> much lower wattage 500K load be used at a reduced input voltage to predict
> the full-power loaded voltage?
> 
> Regards, Gary Lau
> MA, USA

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