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The '''5651''' is an 87 V (at 3.5 mA) glow discharge voltage reference tube with a {{B7G base}}. It is very similar to the [[0G3]]/[[85A2]]. | The '''5651''' is an 87 V (at 3.5 mA) glow discharge voltage reference tube with a {{B7G base}}. It is very similar to the [[0G3]]/[[85A2]]. | ||
The 5651 is used in the power supply of the [[502]], [[581]], [[585]], [[549]], [[535]] and other instruments. | The 5651 is used in the power supply of the [[128]], [[502]], [[581]], [[585]], [[549]], [[535]] and other instruments. | ||
Tek part number: 154-0052-00 | Tek part number: 154-0052-00 |