Electronic tube and vacuum tube catalog

Base

—

Socket code

—

Electrical Summary

Heater	6.3 V / 200 mA

Sections

2

Combination variable-transconductance audio pentode and electron-beam tuning indicator, integrating gain-control or AF amplification with visual receiver tuning.

Base

—

Socket code

P8A

Electrical Summary

Heater	6.3 V / 200 mA
Plate	S1: 300 V / 0.4 W
Screen	S1: 300 V / 0.2 W
rP	S1: 700,000 Ω

Sections

2

8 pins - P8A - European 8-pin side-contact base

Combination remote-cutoff audio pentode and visual tuning indicator, providing variable-gain amplification together with fluorescent receiver tuning or level indication.

Base

—

Socket code

—

Electrical Summary

Heater	15 V / 100 mA
Plate	S1: 300 V / 0.4 W
Screen	S1: 300 V / 0.2 W
Ik max	S1: 4 A
rP	S1: 600,000 Ω

Sections

2

Series-heater luminous-screen indicator combining variable-pentode action with a fluorescent shadow display whose angle changes with control voltage.

Base

—

Socket code

—

Electrical Summary

Heater	6.3 V / 200 mA
Plate	S1: 300 V / 0.3 W
Screen	S1: 300 V / 0.1 W
rP	S1: 800,000 Ω

Sections

2

Combination variable-mu amplifier pentode and cathode-ray tuning indicator for receiver control and visual tuning or signal-strength indication.