TUBEOFILE
8416 — Small Signal Triode, Noval | Tubeofile
← Browse Amperex High quality — base, heater, all universal parameters present, and ≥50% of desirable parameters filled in. Safe to use for design decisions.
Known Equivalents & Substitutes
No known equivalents. If you know of any, use the ⚑ Report Issue button above.
Similar Tubes (Not Drop-In Compatible)
Identical electricals but 6.3V heater (8416 is 12.6V) Identical electricals but 6.3V heater Identical electricals but 6.3V heater E88CC
Identical electricals but 6.3V heater Electrical Specifications
Absolute Maximum
Anode Voltage (max) Anode Voltage (max) 220V
Anode Dissipation (max) Anode Dissipation (max per section) 1.5W
Cathode Current (max) Cathode Current (max average) 20mA
Heater-to-Cathode Voltage (max) Heater-to-Cathode Voltage (max) 150V
Notes
12.6V heater version of 6922/E88CC family. All electrical parameters identical — only heater voltage/current differs. Originally manufactured by Amperex for Tektronix oscilloscopes where 12.6V series-string heater circuits were standard. Often found with Amperex PQ (Premium Quality) gold pins. Pin Layout — Noval
1 2 3 4 5 6 7 8 9
1 Anode (triode 2)
2 Grid (triode 2)
3 Cathode (triode 2)
Socket-Compatible Tubes ⚠ Not electrically compatible
Max Grid Resistor
Max Grid Resistor (cathode bias)
1MΩ
Typical Operating
Anode Voltage (typical) Anode Voltage 100V
Grid 1 Bias Voltage Grid Bias Voltage -1.2V
Anode Current Anode Current 15mA
Anode Resistance Anode Resistance 2,640Ω
Transconductance Transconductance 12.5mA/V
Amplification Factor (μ) Amplification Factor (μ) 33—
Cathode Resistor (self-bias) Cathode Resistor 680Ω
Capacitances
Grid-to-Plate Capacitance Grid-to-Plate Capacitance 1.4pF
Input Capacitance Input Capacitance (Cg/k+f+s) 3.1pF
Output Capacitance Output Capacitance (Ca/k+f+s) 1.75pF
Heater
Heater Voltage Heater Voltage 12.6V
Heater Current Heater Current 0.15A