NOTES:

1. DC BREAKDOWN VOLTAGE:
   The voltage at which the spark gap will break down when subjected to a slowly rising voltage (less than 1kV/sec). Spark gaps can be made with any DC breakdown voltage within the given ranges. The tolerance on the breakdown voltage of all new tubes is +10% -0.
   
   
2. IMPULSE RATIO:
   The ratio of the spark gap breakdown voltage when subjected to a rapidly rising or impulse voltage to the spark gap DC breakdown voltage.
   
   
3. PEAK DISCHARGE CURRENT:
   This is the maximum peak discharge current that the spark gap should pass if an optimum life time is to be obtained. A detrimental effect of the discharge current is the erosion of the spark gap electrode surfaces with the consequential change in the electrical breakdown characteristics of the device. While currents considerably in excess of those quoted can be supported by the spark gaps the gap life time may be reduced under such conditions.
   
   
4. CHARGE TRANSFER PER DISCHARGE:
   In the same way that the peak discharge current can be detrimental to the spark gap the duration of the discharge is also important when considering the gap life time. The charge transferred (the integral of current with time) introduces this time element and the quoted figures should not be exceeded if an optimum life is to be achieved.
   
   
5. LIFE:
   The life is given as the cumulative charge that can be passed through the spark gap without changing the DC breakdown voltage by more than 10%. The rated charge transfer per discharge should not be exceeded if this cumulative life time figure is to be achieved.



6. MAXIMUM CHARGE TRANSFER:
   The maximum charge that can be transferred without causing immediate damage to the device.

Spark gap type: RGB
Outline: 2
DC Breakdown Voltage: 6.2 kV

RGB = Spark Gap Type

2 = Outline

6.2 = DC Breakdown Voltage in kV