[AMPS] More on the SB220

[Rich Measures]

>
>Carl wrote:
>>
>>
>>
>>On Thu, 18 Mar 1999 15:48:44 -0000 Peter Chadwick
>><Peter_Chadwick@mitel.com> writes:
>>>
>>>Could it be that you have a 'flash arc' or 'Rocky Point effect'? 
>>>Although the voltage may be considered low for a glass tube, the effects 
you 
>>>describe fit the description.
>
>>An arc in a vacuum would not go BANG.
>>Neither would the opening of a 2W resistor.
>>
€  I have seen and heard them explode to bits.  

>>Sounds like a HV breakdown to me that is external to the tube.
>
>There could have been a silent arc inside the tube,
>with the bang coming
>from the resistor. IMO a 2W resistor standing in the way of a near-short
>across the HV supply is very likely to exit with a bang!
>
€  What if the resistor is virtually shorted by a few turns of #16 copper 
buswire?



Rich...

R. L. Measures, 805-386-3734, AG6K, www.vcnet.com/measures  


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