View source for ZZ1000

{{Gas Discharge Tube
|Type=Voltage regulator
|Number=ZZ1000
|EuroNumber=
|RussianNumber=
|Part_nos=154-370,154-0370-00
|Description=81 V voltage reference
|an=an
|Used_in=129;3B1;3B1S;3B2;3B3;3S76;422;S-311;
}} specified for a "preferred" operating current of 3.2 mA.  

A ZZ1000 is used in the delayed trigger circuit of the [[3B1]], with an operating current of about 3.65 mA.  
A ZZ1000 is used as the voltage reference in the [[129]] and [[422]].