Voltage - Radio Detector Converter vacuum tubes

Diode-Diode-Pentode

Double-diode remote-cutoff pentode combining radio detection and AVC rectification with gain-controlled receiver amplification. The variable-mu pentode supports smooth automatic gain control while the paired diodes provide detector functions.

Base

7DE

Socket

IO

Heater

6.3 V

Sections

3

Pentode-Triode

Combined triode-pentode used as an oscillator and mixer or frequency converter in television or VHF communications receivers.

Base

9DW

Socket

B9A

Heater

6.3 V

Sections

2

Pentode-Triode

Medium-mu triode plus sharp-cutoff pentode used as a combined oscillator and mixer in television receivers with approximately 40 MHz IF.

Base

9DW

Socket

B9A

Heater

6.3 V

Sections

2

Diode-Diode-Pentode

Duplex-diode remote-cutoff pentode combining radio detector and AVC functions with gain-controlled RF or IF amplification. Its variable-mu characteristic permits smooth receiver gain control from the detected AVC voltage.

Base

7D

Socket

UX7

Heater

6.3 V

Sections

3

Diode-Diode-Pentode

Double-diode remote-cutoff pentode for detector, AVC, and gain-controlled receiver amplification. The paired diodes handle signal and control-voltage rectification while the pentode provides controlled RF or IF gain.

Base

Not recorded

Socket

IO

Heater

6.3 V

Sections

3

Diode-Diode-Pentode

Receiving tube combining radio signal detection or control-voltage rectification with associated voltage amplification. Its detector function is integral to receiver signal processing and supports classification within the radio detector/converter family.

Base

Not recorded

Socket

IO

Heater

6.3 V

Sections

3

Heptode

Pentagrid oscillator-converter for AM and FM superheterodyne receivers. Its multi-grid structure combines local oscillation and mixing in one tube for compact receiver frequency conversion.

Base

8CT

Socket

B9A

Heater

6.3 V

Sections

1

Heptode

Widely used miniature pentagrid oscillator-converter for superheterodyne radio receivers, combining local oscillation and mixing in one envelope for compact AM receiver frequency-changing stages.

Base

7CH

Socket

B7G

Heater

6.3 V

Sections

1

Other

Seven-grid tube for combined limiting and frequency-discriminator service in FM receiving circuits, integrating nonlinear limiting and FM detection in one specialized structure.

Base

NOVAL

Socket

B9A

Heater

6.3 V

Sections

1

Pentode-Triode

Sharp-cutoff pentode and medium-mu triode designed for television frequency-changing and amplifier service.

Base

9DX

Socket

B9A

Heater

6.3 V

Sections

2

Pentode-Triode

Medium-mu triode plus sharp-cutoff pentode used primarily for television frequency-changer service.

Base

9DC

Socket

B9A

Heater

6.3 V

Sections

2

Tetrode

Gated-beam tube combining limiter, discriminator, and audio-voltage amplification for television intercarrier-sound and FM receiver circuits.

Base

7DF

Socket

B7G

Heater

6.3 V

Sections

1

Pentode-Triode

Triode-pentode designed for VHF television converter service, combining oscillator and mixer functions in one envelope.

Base

Not recorded

Socket

B9A

Heater

6.3 V

Sections

2

Pentode-Triode

Medium-mu triode plus sharp-cutoff pentode used as a combined oscillator and mixer in VHF television tuners.

Base

9FA

Socket

B9A

Heater

6.3 V

Sections

2

Diode-Diode-Pentode

Double-diode sharp-cutoff pentode designed for detector functions and IF amplification. The pentode provides intermediate-frequency gain while the paired diodes support detector, discriminator, or control-voltage rectification.

Base

Not recorded

Socket

B9A

Heater

6.3 V

Sections

3

Diode-Diode-Pentode

Double-diode pentode designed primarily for television horizontal phase detection plus sound IF, limiter, and AGC service. Its functional center is television signal processing rather than general radio detection.

Base

Not recorded

Socket

B9A

Heater

6.3 V

Sections

3

Diode-Pentode

Television diode-pentode combining an RF amplifier with a limiter or detector diode. Manufacturer application centers on television receiver signal processing rather than general radio detector/converter service.

Base

Not recorded

Socket

B9A

Heater

6.3 V

Sections

2

Pentode-Triode

VHF triode plus variable-mu frame-grid pentode designed for television tuner frequency-changing and intermediate-frequency amplifier service.

Base

Not recorded

Socket

B9A

Heater

6.3 V

Sections

2

Heptode-Triode

Mazda triode-heptode radio frequency changer.

Base

Not recorded

Socket

Not recorded

Heater

6.3 V

Sections

2

Tetrode-Tetrode

Sharp-cutoff dual tetrode designed for VHF RF-amplifier and autodyne mixer service in receiver front ends.

Base

10F

Socket

B10G

Heater

6.3 V

Sections

2

Pentode-Triode

Triode oscillator plus sharp-cutoff pentode mixer designed for television tuner frequency-converter service.

Base

Not recorded

Socket

B9A

Heater

6.3 V

Sections

2

Pentode-Triode

Triode-pentode television converter family combining oscillator and mixer functions for VHF tuner frequency-changing service.

Base

9GF

Socket

B9A

Heater

6.3 V

Sections

2

Tetrode-Triode

Triode-tetrode designed for VHF oscillator and mixer service.

Base

Not recorded

Socket

Not recorded

Heater

6.3 V

Sections

2

Tetrode-Triode

Miniature triode-tetrode used as a combined VHF oscillator and mixer in color and black-and-white television receivers.

Base

9FX

Socket

B9A

Heater

6.3 V

Sections

2

Tetrode-Triode

Television triode-tetrode whose tetrode serves as mixer, video-IF, or sound-IF amplifier while the triode provides associated signal functions.

Base

9GE

Socket

B9A

Heater

6.3 V

Sections

2

Diode-Pentode

Detector diode combined with a remote-cutoff pentode for audio amplification with AVC control, improving receiver automatic-volume-control performance.

Base

7EA

Socket

B7G

Heater

6.3 V

Sections

2

Diode-Pentode

Single detector diode combined with a remote-cutoff RF pentode for receiver radio-frequency amplification and detection.

Base

OCTAL

Socket

IO

Heater

6.3 V

Sections

2

Pentode

Remote-cutoff high-frequency pentode for RF amplification or first-detector service. Its broad cutoff characteristic supports automatic volume control while high plate resistance provides useful receiver front-end gain.

Base

6F

Socket

UX6

Heater

6.3 V

Sections

1

Heptode

Low-heater-current pentagrid oscillator-converter for superheterodyne receivers. Its multi-grid structure combines local oscillation and mixing while reducing heater-power demand compared with many contemporary converter tubes.

Base

8A

Socket

IO

Heater

6.3 V

Sections

1

Pentode

Dual-control sharp-cutoff pentode for color-television demodulation, gating, and controlled-amplifier circuits. Two effective control grids enable switching and signal processing beyond ordinary pentode amplification.

Base

7CM

Socket

B7G

Heater

6.3 V

Sections

1

Diode-Diode-Pentode

Double-diode remote-cutoff pentode combining detection and AVC rectification with gain-controlled IF amplification. The variable-mu pentode permits smooth receiver gain control while paired diodes handle detector functions.

Base

Not recorded

Socket

B9A

Heater

6.3 V

Sections

3

Heptode-Triode

Rogers 6DS8 triode-heptode frequency converter for low-voltage automobile radios, 6.3 V 300 mA heater.

Base

9CA

Socket

B9A

Heater

6.3 V

Sections

2

Pentode

Dual-control sharp-cutoff pentode developed primarily for television FM detection. Two effective control grids also permit delay, gain-control, and mixer circuits, providing specialized signal-processing flexibility.

Base

7EN

Socket

B7G

Heater

6.3 V

Sections

1

Pentode

Improved dual-control sharp-cutoff pentode designed primarily as an FM detector in color and monochrome television receivers. Both control grids independently influence plate current for specialized detector and control functions.

Base

7EN

Socket

B7G

Heater

6.3 V

Sections

1

Hexode-Triode

J. Visseaux 6E8G triode-hexode frequency converter combining a triode local oscillator with a hexode RF mixer for superheterodyne receivers. Uses a 6.3 V, 0.3 A heater and octal base.

Base

Not recorded

Socket

Not recorded

Heater

6.3 V

Sections

2

Pentode-Triode

Medium-mu triode and sharp-cutoff pentode used as a combined television oscillator and mixer around a 40 MHz intermediate frequency.

Base

Not recorded

Socket

B9A

Heater

6.3 V

Sections

2

Pentode-Triode

Miniature sharp-cutoff pentode plus triode designed primarily for combined television oscillator and mixer frequency-converter service.

Base

9JG

Socket

B9A

Heater

6.3 V

Sections

2

Diode-Pentode

Diode-pentode combination integrating signal rectification with voltage amplification. The pentode supplies useful receiver gain while the diode provides a complementary detector or control-voltage function.

Base

9LQ

Socket

B9A

Heater

6.3 V

Sections

2

Pentode-Triode

Triode oscillator plus sharp-cutoff pentode mixer for television frequency-converter service, with controlled heater-cathode warm-up.

Base

Not recorded

Socket

B9A

Heater

6.3 V

Sections

2

Pentode-Triode

Combined triode and pentode for receiver amplifier plus detector/converter applications, integrating multiple radio signal-processing functions in one envelope.

Base

7E

Socket

UX7

Heater

6.3 V

Sections

2

Pentode-Triode

Combined triode-pentode designed for detector, oscillator, and amplifier service in radio receiving equipment.

Base

Not recorded

Socket

IO

Heater

6.3 V

Sections

2

Pentode-Triode

Combined triode-pentode designed for detector, oscillator, and amplifier service in radio receiving equipment.

Base

Not recorded

Socket

IO

Heater

6.3 V

Sections

2

Diode-Diode-Pentode

Double-diode pentode combining detector and control-voltage rectification with high-resistance signal amplification. The pentode provides substantial gain while paired diodes support detector and AVC-related functions.

Base

Not recorded

Socket

B9A

Heater

6.3 V

Sections

3

Pentode-Triode

Medium-mu triode plus sharp-cutoff pentode used as a combined oscillator and mixer in VHF television receivers.

Base

9GF

Socket

B9A

Heater

6.3 V

Sections

2

Pentode-Triode

Medium-mu triode plus sharp-cutoff pentode used as a combined oscillator and mixer in VHF television tuners.

Base

9FA

Socket

B9A

Heater

6.3 V

Sections

2

Diode-Pentode

Diode variable-mu pentode for detector and gain-controlled receiver amplification. The pentode supports automatic gain regulation while the associated diode supplies complementary detector or control-voltage rectification.

Base

Not recorded

Socket

IO

Heater

6.3 V

Sections

2

Pentode-Triode

Medium-mu triode plus sharp-cutoff pentode used as a combined oscillator and mixer in television receivers.

Base

9QA

Socket

B9A

Heater

6.3 V

Sections

2

Diode-Diode-Pentode

Remote-cutoff pentode with demodulator diodes for controlled-gain amplification and signal detection. The variable-mu pentode supports gain control while diode sections provide complementary demodulation or control functions.

Base

7FW

Socket

B9A

Heater

6.3 V

Sections

3