Data set 01
1959 Rogers
Published operating points and test conditions from this source.
SECTION 1
Pentode
Characteristic
HeaterOrFilamentVoltage
1.25 V
HeaterOrFilamentCurrent
8.2 mA
Connection
Triode connected
Electrometer
Voltage Pentode ·Pentode
7727
Subminiature electrometer pentode normally operated in triode connection for logarithmic and extremely low-current measurements. Its defining function is ultra-sensitive instrumentation rather than conventional RF, audio, or power amplification.
Directly heatedCold cathodeCommon cathodeDissimilar
- Sections
- 1
- Base
- -
- Socket code
- -
- Base pins
- -
- Nominal heater
- 1.25 V / 8.2 mA
Description
Subminiature electrometer pentode, normally triode-connected, for logarithmic and very-low-current measurement applications.
General specifications
Tube and section characteristics
Properties common to every published source and operating point.
Heater and base
- Base
- -
- Socket code
- -
- Base pins
- -
- Nominal heater voltage
- 1.25 V
- Nominal heater current
- 8.2 mA
- Parallel heater voltage
- -
- Parallel heater current
- -
- Series capable
- No
Terminal pinout
Electrical assignments shared by every tube using this base designation.
No verified pinout is recorded for this base designation.
Section ratings
1 physical section, each with unique specifications.
Section 1
Pentode
X-ray radiationInterelectrode capacitances
No fixed ratings are recorded for this section.
Published ratings and characteristics promoted from the supplied Rogers/Rogers Majestic source.
Source-dependent data
Operating conditions by source
Each block preserves the test conditions and published values from one reference. Values from different sources are intentionally kept separate.