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150B3 Nominal voltage: 150 V (145 V - 160 V). Current range: 2 - 20 mA ( 5V variation). Striking voltage: 170 V when the priming electrode is connected to 240 V via a 270 kΩ resistor. If this supply is not used the priming electrode should be connected to the anode via a 68 kΩ resistor. Under these conditions a 240 volt supply is needed to ensure reliable ignition. Ignition may be delayed or unreliable in total darkness. Mullard datasheet. Photo © Andy Cowley, M1EBV, 2005. |
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G400-1K (CV2194) High-voltage high-stability regulator with priming anode. Nominal voltage: 306 V @ 3 mA Strike voltage: 375 V nom., 400 V max. Current range: 2 - 4 mA (3 V variation) STC datasheet. Photos © Andy Cowley, M1EBV, 2008. |
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© Andy Cowley 2005 - 2008 |