Data set 01
1959 Rogers
Published operating points and test conditions from this source.
SECTION 1
Triode
Characteristic
HeaterOrFilamentVoltage
14 V
HeaterOrFilamentCurrent
100 mA
SECTION 2
Hexode
Characteristic
Application
Frequency converter
Voltage Radio Detector Converter ·Hexode-Triode
14Y7
Rogers 14Y7 triode-hexode radio frequency converter with shared cathode and internally coupled oscillator grid, 14 V 0.1 A heater, and 9Q nine-pin base.
Directly heatedCold cathodeCommon cathodeDissimilar
- Sections
- 2
- Base
- 9Q
- Socket code
- B9A
- Base pins
- 9
- Nominal heater
- 14 V / 100 mA
Description
Triode-hexode frequency converter.
Socket description
Small-button Noval 9-contact
General specifications
Tube and section characteristics
Properties common to every published source and operating point.
Heater and base
- Base
- 9Q
- Socket code
- B9A
- Base pins
- 9
- Nominal heater voltage
- 14 V
- Nominal heater current
- 100 mA
- Parallel heater voltage
- -
- Parallel heater current
- -
- Series capable
- No
9Q - Terminal pinout
Electrical assignments shared by every tube using this base designation.
No verified pinout is recorded for this base designation.
Section ratings
2 physical sections, each with unique specifications.
Section 1
Triode
X-ray radiationInterelectrode capacitances
- Transconductance
- 0.0028 S
- Amplification factor
- 22
- Max plate voltage
- 175 V
- Max plate dissipation
- 0.8 W
- Max cathode current
- 6 mA
Rogers 14Y7 triode oscillator: max operating plate 175 V, no-current plate 550 V, dissipation 0.8 W, cathode current max 6 mA, heater-cathode max 150 V. Typical at Va 100 V, Vg 0 V, plate current 10 mA, gm 0.0028 A/V, mu 22; source inconsistency: 10 mA typical plate current exceeds 6 mA max cathode current. Shared cathode and grid tied internally to hexode g3. Capacitances triode grid-to-plate 1.4 pF, cathode-to-grid 5.6 pF, cathode-to-plate 2.4 pF.
Section 2
Hexode
X-ray radiationInterelectrode capacitances
- Max plate voltage
- 250 V
- Max plate dissipation
- 1.5 W
- Max screen dissipation
- 0.3 W
- Max cathode current
- 10 mA
Rogers 14Y7 hexode mixer: max operating anode 250 V, no-current anode 550 V, plate dissipation 1.5 W, screen g2+g4 dissipation 0.3 W, cathode current max 10 mA, heater-cathode max 150 V. Screen max 125 V at plate current 3 mA; 250 V when plate current <1 mA; no-current screen 550 V. No unconditional max_screen_voltage scalar assigned because screen limit depends on operating current. Typical conversion conductance 530/670/750 µmhos at specified 100/170/200 V supply conditions; conversion conductance not promoted to conventional gm. Hexode g1 input C 3.8 pF, plate output C 9.2 pF, grid1-plate max 0.1 pF, grid1-heater max 0.15 pF. Shared cathode with triode; hexode grid3 linked to triode grid.
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.