Voltage - Radio Detector Converter vacuum tubes

Heptode

Battery heptode frequency changer for portable superheterodyne receivers, combining oscillator and mixer action in one low-power valve. Manufacturer data include an economy operating condition emphasizing efficient battery-powered frequency conversion.

Base

Not recorded

Socket

Not recorded

Heater

1.4 V

Sections

1

Heptode

Battery heptode frequency changer for oscillator-mixer operation in portable superheterodyne receivers. Its low-power directly heated construction provides useful conversion gain from economical battery supplies.

Base

B7G

Socket

B7G

Heater

1.4 V

Sections

1

Pentode

Versatile Philips pentode for RF, IF, audio-frequency, oscillator, frequency-converter, and detector service. Its unusually broad documented application range allows it to perform most major small-signal functions in a radio receiver.

Base

Not recorded

Socket

P8A

Heater

6.3 V

Sections

1

Hexode

Early Philips indirectly heated hexode for oscillator-modulator and frequency-changing service. Its multi-grid structure allows oscillator and signal voltages to interact for conversion or modulation in early European receiving equipment.

Base

Not recorded

Socket

Not recorded

Heater

4 V

Sections

1

Diode-Pentode

Diode-pentode for receiver RF/IF amplification and detection. The high-resistance pentode provides useful high-frequency gain while the separate diode supplies signal-detection and rectification service.

Base

RIMLOCK

Socket

RIMLOCK8

Heater

6.3 V

Sections

2

Diode-Pentode

Telefunken diode-pentode for receiver detection and controlled RF/IF amplification. Its remote-cutoff pentode permits progressive gain control while the separate diode provides detector or control-voltage rectification.

Base

Not recorded

Socket

B9A

Heater

6.3 V

Sections

2

Diode-Pentode

Diode-pentode for receiver signal detection and voltage amplification. The high-resistance pentode supplies small-signal gain while the separate diode provides detector or control-voltage rectification.

Base

Not recorded

Socket

P8A

Heater

6.3 V

Sections

2

Diode-Pentode

Diode-pentode receiving valve combining signal detection with high-resistance pentode amplification. The pentode supplies receiver gain while the separate diode provides detector or control-voltage rectification.

Base

Not recorded

Socket

SIDE8

Heater

6.3 V

Sections

2

Diode-Diode-Pentode

Double-diode pentode combining receiver amplification with two independent signal-rectifying elements. The pentode supplies gain while paired diodes support detector and control-voltage functions.

Base

Not recorded

Socket

SIDE8

Heater

6.3 V

Sections

3

Diode-Diode-Pentode

Double-diode variable-mu pentode for RF/IF amplification, detection, and automatic-volume-control service. The pentode provides controlled gain while paired diodes handle detector and AVC rectification.

Base

NOVAL

Socket

B9A

Heater

6.3 V

Sections

3

Diode-Diode-Pentode

Double-diode variable-mu pentode for radio IF amplification, detection, and automatic gain control. The pentode provides controllable gain while paired diodes handle detector and control-voltage rectification.

Base

NOVAL

Socket

B9A

Heater

6.3 V

Sections

3

Pentode-Triode

Frame-grid triode and variable-mu pentode for television tuner frequency-changing and controlled IF-amplifier service.

Base

B9A

Socket

B9A

Heater

6.3 V

Sections

2

Pentode-Triode

Triode-pentode for VHF oscillator and frequency-converter service.

Base

B9A

Socket

B9A

Heater

6.3 V

Sections

2

Pentode

Versatile Philips pentode explicitly usable for RF/IF amplification, biased radio detection, and AF amplification. Its documented detector role keeps it within the radio detector family despite its broader amplifier capability.

Base

Not recorded

Socket

Not recorded

Heater

6.3 V

Sections

1

Hexode

High-resistance hexode for first-detector/modulator and RF/IF amplifier service. Its multi-grid construction supports controlled mixing and signal amplification in radio receiver frequency-conversion stages.

Base

Not recorded

Socket

Not recorded

Heater

4.3 V

Sections

1

Octode

Radio receiver frequency changer combining oscillator and mixer functions for superheterodyne conversion. Its multi-grid construction translates incoming RF signals to the intermediate frequency within the receiver front end.

Base

Not recorded

Socket

Not recorded

Heater

6.3 V

Sections

1

Octode

Radio receiver frequency changer combining oscillator and mixer functions for superheterodyne conversion. Its multi-grid construction translates incoming RF signals to the intermediate frequency within the receiver front end.

Base

Not recorded

Socket

P8A

Heater

6.3 V

Sections

1

Octode

Radio receiver frequency changer combining oscillator and mixer functions for superheterodyne conversion. Its multi-grid construction translates incoming RF signals to the intermediate frequency within the receiver front end.

Base

Not recorded

Socket

Not recorded

Heater

6.3 V

Sections

1

Octode

Radio receiver frequency changer combining oscillator and mixer functions for superheterodyne conversion. Its multi-grid construction translates incoming RF signals to the intermediate frequency within the receiver front end.

Base

Not recorded

Socket

IO

Heater

6.3 V

Sections

1

Heptode

Radio receiver frequency changer combining oscillator and mixer functions for superheterodyne conversion. Its multi-grid construction translates incoming RF signals to the intermediate frequency within the receiver front end.

Base

B7G

Socket

B7G

Heater

6.3 V

Sections

1

Octode

Radio receiver frequency changer combining oscillator and mixer functions for superheterodyne conversion. Its multi-grid construction translates incoming RF signals to the intermediate frequency within the receiver front end.

Base

SideContact

Socket

B7

Heater

13 V

Sections

1

Octode

Radio receiver frequency changer combining oscillator and mixer functions for superheterodyne conversion. Its multi-grid construction translates incoming RF signals to the intermediate frequency within the receiver front end.

Base

British7Pin

Socket

B7

Heater

13 V

Sections

1

Octode

Radio receiver frequency changer combining oscillator and mixer functions for superheterodyne conversion. Its multi-grid construction translates incoming RF signals to the intermediate frequency within the receiver front end.

Base

British7Pin

Socket

B7

Heater

2 V

Sections

1

Octode

Radio receiver frequency changer combining oscillator and mixer functions for superheterodyne conversion. Its multi-grid construction translates incoming RF signals to the intermediate frequency within the receiver front end.

Base

British7Pin

Socket

B7

Heater

2 V

Sections

1

Heptode

Radio receiver frequency changer combining oscillator and mixer functions for superheterodyne conversion. Its multi-grid construction translates incoming RF signals to the intermediate frequency within the receiver front end.

Base

Not recorded

Socket

B7G

Heater

12.6 V

Sections

1

Pentode

High-frequency pentode for radio detector, RF and IF amplifier, and automatic-volume-control service in universal receivers. Detection is an explicit primary manufacturer application alongside receiver amplification.

Base

Not recorded

Socket

B6

Heater

10 V

Sections

1

Pentode-Triode

Battery triode-pentode frequency changer with a variable-mu pentode section.

Base

Not recorded

Socket

Not recorded

Heater

2 V

Sections

2

Hexode

Directly heated multi-grid frequency changer for battery receivers, designed principally for mixer service but usable as a hexode, pentode, or tetrode. Its flexible electrode arrangement supports several portable-radio circuit configurations.

Base

Not recorded

Socket

Not recorded

Heater

2 V

Sections

1

Octode

Directly heated battery octode for superheterodyne frequency conversion. Its multi-grid structure combines oscillator-assisted mixing with very high plate resistance, while the low-current filament minimizes consumption in portable receivers.

Base

P35(37)

Socket

Not recorded

Heater

2 V

Sections

1

Octode

Directly heated variable-mu octode frequency changer for battery superheterodyne receivers covering medium, long, and short waves. Its controllable conversion characteristic supports receiver gain control while preserving economical filament consumption.

Base

Not recorded

Socket

IO

Heater

2 V

Sections

1

Pentode-Triode

Miniature triode-pentode used for frequency-changing service in television receivers.

Base

Not recorded

Socket

B9A

Heater

6 V

Sections

2

Pentode-Triode

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

Base

9QA

Socket

B9A

Heater

5.6 V

Sections

2

Pentode-Triode

Frame-grid triode-pentode used as a combined oscillator and mixer in VHF color and black-and-white television receivers.

Base

Not recorded

Socket

B9A

Heater

6.3 V

Sections

2

Heptode

Heptode frequency changer for superheterodyne receiver service. Its multi-grid structure combines oscillator and incoming signals for intermediate-frequency conversion, providing conventional mixer operation in series-heater receiving equipment.

Base

Not recorded

Socket

M7A

Heater

10 V

Sections

1

Heptode

Osram heptode frequency changer for superheterodyne radio receivers. Its multi-grid construction combines oscillator and mixer action, translating the selected radio-frequency signal to the receiver intermediate frequency.

Base

Not recorded

Socket

B7

Heater

4 V

Sections

1

Heptode

Heptode frequency changer for early superheterodyne receivers, closely associated with Osram converter practice. Its multi-grid electrode structure performs oscillator-mixer frequency conversion from conventional contemporary receiver supplies.

Base

Not recorded

Socket

B7

Heater

4 V

Sections

1

Pentode-Triode

Triode-pentode for VHF oscillator and frequency-converter service.

Base

B9A

Socket

B9A

Heater

9 V

Sections

2

Pentode-Triode

VHF triode-pentode frequency changer for AC/DC television receivers.

Base

B9A

Socket

B9A

Heater

8.3 V

Sections

2

Pentode-Triode

Triode-pentode for VHF frequency-converter service.

Base

9QA

Socket

B9A

Heater

8.5 V

Sections

2

Pentode-Triode

Triode-pentode for television oscillator and mixer service.

Base

Not recorded

Socket

B9A

Heater

8.5 V

Sections

2

Pentode-Triode

Variable-mu frame-grid triode-pentode for VHF television tuner frequency changing and controlled IF amplification.

Base

B9A

Socket

B9A

Heater

7.4 V

Sections

2

Pentode-Triode

VHF television frequency changer with high-slope oscillator triode and high-input-impedance pentode mixer.

Base

B9A

Socket

B9A

Heater

9.5 V

Sections

2

Pentode-Triode

Triode-pentode for VHF oscillator and frequency-converter service.

Base

9MP

Socket

B9A

Heater

8 V

Sections

2

Pentode-Triode

Variable-mu frame-grid triode-pentode designed for VHF television tuner frequency-changing and high-frequency front-end service.

Base

B9A

Socket

B9A

Heater

7.4 V

Sections

2

Tetrode

Double-grid mixer tube for series-heater superheterodyne receivers. Its two-grid structure performs frequency conversion in the receiver front end.

Base

Not recorded

Socket

Not recorded

Heater

4 V

Sections

1

Tetrode

Early indirectly heated double-grid mixer tube for superheterodyne frequency-changing service, combining incoming RF and local-oscillator signals.

Base

Not recorded

Socket

Not recorded

Heater

4 V

Sections

1

Hexode

Telefunken mixer hexode for superheterodyne frequency-changing service. Its multi-grid structure allows the incoming RF signal and a separate oscillator signal to interact, producing the receiver intermediate-frequency output.

Base

Not recorded

Socket

Not recorded

Heater

4 V

Sections

1

Pentode

Telefunken RF and IF pentode also designed for detector or anode-rectifier service. Depending on circuit configuration, it can provide high-frequency signal amplification or demodulation in early mains-powered receivers.

Base

Not recorded

Socket

Not recorded

Heater

4 V

Sections

1