The XB1 is a barretter or current stabilising device. Normally barretters have iron wire as the active element in a hydrogen atmosphere. The XB1 was designed to stabilise a current of 300 mA in heater chains. In use the voltage drop was designed to be 9 to 16 volts and the current to be stabilised at that voltage drop.Inside the envelope can be seen a fine spiral of wire that is draped over two supports.The thin glass tube envelope is 18 mm in diameter, and excluding the B7G base pins, is 45 mm tall.Reference: 1040. |
Pin Connections
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Updated January 03, 2022.
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