>
>
>On Thu, 7 Jan 1999 10:18:16 -0800 Rich Measures <measures@vc.net> writes:
>>
>>>
>>>
>>>
>>>On Thu, 7 Jan 1999 03:56:41 -0800 Rich Measures <measures@vc.net>
>>writes:
>>
>>>>>Re: SB-220 on 10 M.
>>>>>
>>>>>K4AB damaged the bandswitch
>>>>
>>>>? Did he damage the bandswitch through error?
>>>
>>>Yeah, Heathkits....not voodoo.
>>>
>>Barring spilt coffee, the withstanding potential of the Heath SB-220
>>bandswitch is slightly over 5000v.
>
>
>5000V from where to where?
>
across open contacts
>
>On the SSB tap, tank piv is c. 2600v.
>> With deliberate mistuning, the tank piv has been measured with an
>>oscilloscope at 3600v max.
>
>So obviously there was no arc then.
agreed. I can not make my 220 arc by mistuning into a 50 ohm load.
>Measure the voltage preceeding an arc.
>
We know that the switch arcs at a bit more than 5000v. We know that the
normal peak HF potential across open contacts is c. 2600v.
>........
Rich...
R. L. Measures, 805-386-3734, AG6K, www.vcnet.com/measures
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