|To:||LF-Group <[email protected]>|
|Subject:||LF: Off topic|
|From:||Dick Rollema <[email protected]>|
|Date:||Thu, 10 Mar 2005 19:25:49 +0100|
TYo All from PA0SE|
I am presently writing an article for our VERON magazine Electron on the early radio experiments by Marconi. In these experiments spark gaps played an important role. Because I would like to perform some simple calculations on the peak power radiated by a spark transmitter I am looking for data on the break down voltage of spark gaps, consisting of two spheres.
In literature, found on the Internet, 75kV/inch is quoted but it is not stated whether this is between points or spheres and that makes a lot of difference.
Temperature and air pressure also influence break down voltage but I will forget about that, reckoning with "normal" conditions of,
say , 20 degrees centigrade and 1000 hectopascal or whatever as reckoned as standard barometric pressure.
Your help will be very much appreciated.
73, Dick, PA0SE
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