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Re: Primaries




How much current can these triggered spark gaps take for how long at say
200khz?  How much do these things sell for??
Barry

 ----------
|From: "tesla-at-poodle.pupman-dot-com"-at-PMDF-at-PAXMB1
|To: Benson Barry; "Tesla-list-subscribers-at-poodle.pupman-dot-com"-at-PMDF-at-PAXMB1
|Subject: Re: Primaries
|Date: Thursday, September 26, 1996 9:44PM
|
|<<File Attachment: 00000000.TXT>>
|From dll-at-egg-rb-dot-comWed Sep 25 21:02:21 1996
|Date: Wed, 25 Sep 1996 07:13:48 -0400 (EDT)
|From: dll-at-egg-rb-dot-com
|To: tesla-at-pupman-dot-com
|Subject: Re: Primaries
|
|The method outlined for measuring gap voltage has never provided very
|accurate
|results for us, because the voltage range of the measurement is too large.
|If the scope is set to display the entire voltage waveform with an off 
state
|voltage of say 10,000 volts, the on state voltage of ~100 volts will be so
|low
|that the scope won't measure it accurately.  On the other hand, if we set 
the
|scope gain up to measure the on state voltage more accurately, the 
amplifier
|overloads again givie false information. We usually measure switch drop by
|operating the device in a circuit whose impedances are well known.  Then by 

|measuring the rate of decay of the decremental current wave, the total
|circuit
|resistance can be computed.  The switch resistance is then the difference
|between the total resistance and the known circuit resistance.  Using this
|method we get switch resistances between 0.05 and 0.2 ohms for our line of
|gas
|filled triggered spark gaps.
|
|David Lockwood
|