Tuning Indicator vacuum tubes

Triode-TuningIndicator

Ediswan/Mazda electronic tuning indicator for visual receiver tuning or signal-level indication.

Base

Not recorded

Socket

IO

Heater

12.6 V

Sections

2

Triode-TuningIndicator

Electron-ray visual indicator for receiver tuning or electrical level indication, using a fluorescent display whose pattern changes with control voltage.

Base

60

Socket

IO

Heater

12.6 V

Sections

2

Triode-TuningIndicator

Electron-ray visual indicator for receiver tuning or electrical level indication, using a fluorescent display whose pattern changes with control voltage.

Base

Not recorded

Socket

IO

Heater

12.6 V

Sections

2

Triode-TuningIndicator

Magic-eye tuning indicator combining a triode control section with a fluorescent electron-ray display for receiver tuning indication.

Base

7AL

Socket

IO

Heater

12.6 V

Sections

2

TuningIndicator

High-reliability Russian electron-light indicator designed to display voltage level in semiconductor circuitry and compact electronic equipment.

Base

Not recorded

Socket

Not recorded

Heater

1.5 V

Sections

1

TuningIndicator

Directly heated subminiature low-power tuning indicator for battery-operated or mains-powered radio receivers.

Base

Not recorded

Socket

Not recorded

Heater

1.4 V

Sections

1

TuningIndicator

Electron-ray visual indicator for receiver tuning or electrical level indication, using a fluorescent display whose pattern changes with control voltage.

Base

SDN

Socket

Not recorded

Heater

1.4 V

Sections

1

TuningIndicator

Electron-ray visual indicator for receiver tuning or electrical level indication, using a fluorescent display whose pattern changes with control voltage.

Base

Not recorded

Socket

Not recorded

Heater

1.4 V

Sections

1

TuningIndicator

Electron-ray visual indicator for receiver tuning or electrical level indication, using a fluorescent display whose pattern changes with control voltage.

Base

Not recorded

Socket

Not recorded

Heater

1.4 V

Sections

1

Triode-TuningIndicator

Electron-ray visual indicator for receiver tuning or electrical level indication, using a fluorescent display whose pattern changes with control voltage.

Base

6R

Socket

Not recorded

Heater

2.5 V

Sections

2

Triode-TuningIndicator

Circular fluorescent tuning indicator incorporating an internally connected remote-cutoff triode amplifier.

Base

Not recorded

Socket

Not recorded

Heater

2.5 V

Sections

2

TuningIndicator

Neon gas-discharge visual indicator for receiver tuning or electrical level indication, using controlled glow rather than a conventional fluorescent electron-ray target.

Base

Not recorded

Socket

B4

Heater

Not recorded

Sections

1

TuningIndicator

Neon gas-discharge visual indicator for receiver tuning or electrical level indication, using controlled glow rather than a conventional fluorescent electron-ray target.

Base

Not recorded

Socket

Not recorded

Heater

Not recorded

Sections

1

TuningIndicator

Neon gas-discharge visual indicator for receiver tuning or electrical level indication, using controlled glow rather than a conventional fluorescent electron-ray target.

Base

Not recorded

Socket

Not recorded

Heater

Not recorded

Sections

1

Triode-TuningIndicator

Visual tuning indicator combining a triode amplifier with a fluorescent cathode-ray display whose luminous pattern varies with tuning-control voltage.

Base

Not recorded

Socket

Not recorded

Heater

6.3 V

Sections

2

TuningIndicator-TuningIndicator

National Union twin indicator tube providing two built-in visual indications for equipment test, status, or operating-condition display.

Base

Not recorded

Socket

B7G

Heater

6.3 V

Sections

2

TuningIndicator

Subminiature directly heated voltage-indicator tube, DM160/6977, designed to show the switching state of flip-flop and logic circuits with a visible luminous strip.

Base

Subminiature wire-leaded

Socket

B5D

Heater

1 V

Sections

1

Triode-TuningIndicator

Electron-ray visual indicator for receiver tuning or electrical level indication, using a fluorescent display whose pattern changes with control voltage.

Base

6R

Socket

Not recorded

Heater

6.3 V

Sections

2

TuningIndicator

Double-diode tuning indicator providing visual receiver indication through changes in fluorescent shadow angle.

Base

7AG

Socket

B7

Heater

6.3 V

Sections

1

TuningIndicator

Cathode-ray tuning indicator with two independently controlled shadow angles on a circular fluorescent screen.

Base

7AG

Socket

IO

Heater

6.3 V

Sections

1

TuningIndicator

Twin-shadow electron-ray tuning indicator.

Base

Not recorded

Socket

Not recorded

Heater

6.3 V

Sections

1

TuningIndicator

Electron-ray indicator designed especially for precise visual tuning of AM/FM radio receivers.

Base

B8-6

Socket

IO

Heater

6.3 V

Sections

1

Triode-TuningIndicator

Electron-ray visual indicator for receiver tuning or electrical level indication, using a fluorescent display whose pattern changes with control voltage.

Base

Not recorded

Socket

B9A

Heater

6.3 V

Sections

2

Triode-TuningIndicator

Electron-ray visual indicator for receiver tuning or electrical level indication, using a fluorescent display whose pattern changes with control voltage.

Base

8EV

Socket

IO

Heater

6.3 V

Sections

2

Triode-TuningIndicator

Electron-ray visual indicator for receiver tuning or electrical level indication, using a fluorescent display whose pattern changes with control voltage.

Base

Not recorded

Socket

B9A

Heater

6.3 V

Sections

2

TuningIndicator

6DL7 tuning indicator electronic tube specifications and datasheets.

Base

Not recorded

Socket

Not recorded

Heater

6.3 V

Sections

1

Triode-TuningIndicator

Russian electron-ray indicator combining a triode control system with a fluorescent crater-anode display.

Base

Not recorded

Socket

B9A

Heater

6.3 V

Sections

2

TuningIndicator

Russian 6E2P electron-ray tuning indicator for FM receiver visual tuning, with fluorescent display and 6.3 V 580 mA heater.

Base

Not recorded

Socket

Not recorded

Heater

6.3 V

Sections

1

TuningIndicator

Russian 6E3P fluorescent electron-ray indicator for stereo tape-recorder visual tuning and level indication, with 6.3 V 250 mA heater.

Base

Not recorded

Socket

Not recorded

Heater

6.3 V

Sections

1

Triode-TuningIndicator

Classic glass electron-ray tuning indicator combining a triode control section with a fluorescent variable-shadow display for accurate receiver tuning.

Base

6R

Socket

UX6

Heater

6.3 V

Sections

2

TuningIndicator

6E5GT tuning indicator electronic tube specifications and datasheets.

Base

Not recorded

Socket

Not recorded

Heater

6.3 V

Sections

1

TuningIndicator

Russian indirectly heated electron-beam tuning indicator used to display receiver tuning or signal strength. Its fluorescent display and control-electrode response provide a visible indication rather than conventional tetrode voltage amplification.

Base

Not recorded

Socket

IO

Heater

6.3 V

Sections

1

Triode-TuningIndicator

Miniature tuning indicator for broadcast receivers and tape recorders, using two converging fluorescent bars controlled by an internal triode.

Base

Not recorded

Socket

B9A

Heater

6.3 V

Sections

2

Triode-TuningIndicator

Electron-ray visual indicator for receiver tuning or electrical level indication, using a fluorescent display whose pattern changes with control voltage.

Base

Not recorded

Socket

UX6

Heater

6.3 V

Sections

2

Triode-TuningIndicator

Electron-ray visual indicator for receiver tuning or electrical level indication, using a fluorescent display whose pattern changes with control voltage.

Base

Not recorded

Socket

IO

Heater

6.3 V

Sections

2

Triode-TuningIndicator

Electron-ray audio-level indicator designed specifically for tape recorders, providing a fluorescent visual display of changing recording signal level.

Base

Not recorded

Socket

B9A

Heater

6.3 V

Sections

2

Triode-TuningIndicator

Dual-sensitivity cathode-ray tuning indicator producing a fluorescent Maltese-cross display for visual receiver tuning across differing control-voltage ranges.

Base

IO8

Socket

IO

Heater

6.3 V

Sections

2

Triode-TuningIndicator

Triode-controlled visual tuning indicator combining a control triode with a fluorescent display for translating receiver control voltage into visible tuning indication.

Base

6R

Socket

UX6

Heater

6.3 V

Sections

2

Triode-TuningIndicator

Electron-ray tuning indicator providing visual indication of receiver tuning or changing signal-derived control voltage through a fluorescent display.

Base

Not recorded

Socket

UX6

Heater

6.3 V

Sections

2

Triode-TuningIndicator

Vacuum tuning indicator with integral triode control section, converting receiver control-voltage changes into a visible fluorescent tuning display.

Base

6R

Socket

UX6

Heater

6.3 V

Sections

2

Triode-TuningIndicator

Circular electron-ray tuning indicator with integral remote-cutoff triode amplifier, producing a variable fluorescent shadow for accurate receiver tuning.

Base

6R

Socket

UX6

Heater

6.3 V

Sections

2

TuningIndicator

6U56G5 tuning indicator electronic tube specifications and datasheets.

Base

Not recorded

Socket

Not recorded

Heater

6.3 V

Sections

1

Triode-TuningIndicator

Magic-eye electron-ray tuning indicator using a fluorescent target and signal-controlled shadow for visual receiver tuning.

Base

Not recorded

Socket

IO

Heater

6.3 V

Sections

2

TuningIndicator

Electron-ray tuning indicator for visual receiver tuning and signal-level indication through a fluorescent display.

Base

Not recorded

Socket

OCTAL7

Heater

6.3 V

Sections

1

TuningIndicator

Long-life directly heated end-view indicator triode producing blue-green light proportional to plate current for compact visual electrical-level indication.

Base

Not recorded

Socket

Not recorded

Heater

0.7 V

Sections

1

Triode-TuningIndicator

Mazda AC/ME cathode-ray tuning indicator for AC-mains receivers, using a fluorescent target and control electrode for visible tuning indication.

Base

Not recorded

Socket

Not recorded

Heater

4 V

Sections

2

Triode-TuningIndicator

Four-volt tuning-cross visual indicator producing a fluorescent cross-pattern controlled by signal-derived voltage for accurate receiver tuning.

Base

P26

Socket

Not recorded

Heater

4 V

Sections

2

Triode-TuningIndicator

Electron-ray tuning indicator combining a control triode with fluorescent display for visual tuning indication in AC-mains receivers.

Base

P30

Socket

Not recorded

Heater

4 V

Sections

2