Electronic Tube & Vacuum Tube Catalog | Tube Tinker

Plate Resistance: rp

Transconductance: gm (mA/V)

Amplification Factor: μ

Maximum Plate Voltage: Va(max)

Maximum Plate Dissipation: Pa(max)

Maximum Screen Voltage: Vs(max)

Rectifier Nominal Output Current: I(DC)

Catalog results

Browse all tubes and open a row to inspect its sections.

2 tubes found

Sort results

12EC8
Voltage - Pentode or Tetrode (under 100V)Pentode-TriodeDissimilarCommon cathode
PDF Google eBay
Base
9FA
Socket code
B9A
Sections
2
Heater
12.6 V / 225 mA
Plate
S1: 16 V · S2: 16 V
rP
S1: 6,000 Ω · S2: 300,000 Ω
gm
S1: 6.7 mA/V · S2: 6 mA/V
μ
S1: 40
9 pins - B9A - Small-button Noval 9-contact
Medium-mu triode and sharp-cutoff pentode combination for signal amplification and general electronic service.
Pentode Sharp Cutoff Triode Pentode
Source PDFs (5)
1V6
Voltage - Pentode or Tetrode (under 100V)Pentode-TriodeDissimilarDirectly heated
PDF Google eBay
Base
7BC
Socket code
B7G
Sections
2
Heater
1.25 V / 40 mA
Plate
S1: 45 V · S2: 90 V
Screen
S2: 90 V
rP
S1: 12,000 Ω · S2: 1,000,000 Ω
gm
S1: 0.2 mA/V · S2: 0.2 mA/V
μ
S1: 2.4
7 pins - B7G - Miniature 7-contact
Directly heated subminiature triode-pentode for low-power battery-operated amplifier circuits.
Subminiature Wire Leaded Suitable For Battery Equipment Triode Pentode
Source PDFs (5)

More

Electrical Summary

General Summary

Voltage - Pentode or Tetrode (under 100V)Pentode-TriodeDissimilarCommon cathode

Heater	12.6 V / 225 mA
Plate	S1: 16 VS2: 16 V
rP	S1: 6,000 ΩS2: 300,000 Ω
gm	S1: 6.7 mA/VS2: 6 mA/V
μ	S1: 40

9 pins - B9A - Small-button Noval 9-contact

Medium-mu triode and sharp-cutoff pentode combination for signal amplification and general electronic service.

Pentode Sharp Cutoff Triode Pentode

Voltage - Pentode or Tetrode (under 100V)Pentode-TriodeDissimilarDirectly heated

Heater	1.25 V / 40 mA
Plate	S1: 45 VS2: 90 V
Screen	S2: 90 V
rP	S1: 12,000 ΩS2: 1,000,000 Ω
gm	S1: 0.2 mA/VS2: 0.2 mA/V
μ	S1: 2.4

7 pins - B7G - Miniature 7-contact

Directly heated subminiature triode-pentode for low-power battery-operated amplifier circuits.

Subminiature Wire Leaded Suitable For Battery Equipment Triode Pentode

Showing 1-2 of2 tubes