Specialized - Switching Tube ·Thyratron
Cold-cathode gas-discharge switching tube. Available source material confirms heaterless thyratron-type construction but does not establish a narrower application.
Z70W is a Other device in the supplied Amperex literature. Cold-cathode gas-filled trigger tube for pulse/control circuits; source explicitly co-designates the numeric and Z-series type.
General specifications
Properties common to every published source and operating point.
Electrical assignments shared by every tube using this base designation.
No verified pinout is recorded for this base designation.
1 physical section, each with unique specifications.
Section 1
No fixed ratings are recorded for this section.
Subminiature cold-cathode trigger tube with positive starter and priming cathode.
Source-dependent data
Each block preserves the test conditions and published values from one reference. Values from different sources are intentionally kept separate.
Data set 01
Published operating points and test conditions from this source.
Anode voltage range
200 to 310 V
DC
Peak cathode current
16 mA
Recommended priming resistor
18 MOhm
Cathode current range
2 to 4 mA
DC
Starter-to-cathode breakdown voltage
137 to 153 V
Anode-to-cathode sustaining voltage
111 to 121 V
Anode-to-cathode breakdown voltage
>325 V
Data set 02
Published operating points and test conditions from this source.
Anode maintaining voltage at 3 mA
111 to 121 V
Pulsed starter ignition voltage
- to 175 V
Maximum
Total starter pulse plus bias voltage
200 V
Minimum anode supply voltage
200 to - V
Peak cathode current
- to 16 mA
Negative starter pulse voltage at 300 V supply
- to 30 V
Negative starter pulse voltage at 200 V supply
- to 50 V
Data set 03
Published operating points and test conditions from this source.
Anode supply voltage
250 V
Starter ignition voltage minimum
137 V
Starter ignition voltage maximum
153 V
Anode maintaining voltage
116 V
Ia=3mA
Cathode current
3 mA