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Vacuum tube with five electrodes
A pentode is an electronic device having five electrodes. The term most commonly applies to a three-grid amplifying vacuum tube or thermionic valve that
Pentode
A pentode transistor is any transistor having five active terminals. One early pentode transistor was developed in the early 1950s as an improvement over
Pentode_transistor
Device that controls current between electrodes
data sheets often use the terms beam pentode or beam power pentode instead of beam power tube, and use a pentode graphic symbol instead of a graphic symbol
Vacuum_tube
pentode, R8 1S6 – Diode, pentode, R8 1T6 – Diode, pentode, R8 1V5 – Power pentode, R8 1V6 – Triode-pentode converter, FL 1W5 – Sharp-cutoff pentode,
List_of_vacuum_tubes
Vacuum tube (valve)
The EL34 is a thermionic vacuum tube of the power pentode type. The EL34 was introduced in 1955 by Mullard, which was owned by Philips. The EL34 has an
EL34
KL1 – Power pentode KL2 – Power pentode KL4 – Power pentode KL5 – Power pentode KL35 – 340 mW Power pentode KLL32 – 1.2W Dual power pentode KY80 = U26
List of Mullard–Philips vacuum tubes
List_of_Mullard–Philips_vacuum_tubes
Vacuum tube with four active electrodes
was quickly superseded by the rf pentode, while the latter was initially developed as an alternative to the pentode as an audio power amplifying device
Tetrode
Amplifying tubes containing control grids, such as triodes, tetrodes, pentodes, and beam tetrodes, are represented by families of curves measured for
Vacuum_tube_characteristics
Vacuum tube
(Mullard–Philips tube designation EL90) is a miniature 7-pin (B7G) audio power output pentode vacuum tube with ratings virtually identical to the 6V6 at 250 V. It was
6AQ5
Power pentode vacuum tube
The EL84 is a vacuum tube of the power pentode type. It is used in the power-output stages of audio amplifiers, most commonly now in guitar amplifiers
EL84
a triode section, "F" for a pentode section, "H" for a hexode or heptode section, and "L" for a power tetrode or pentode section. The first number identified
Double_diode_triode
The GU-50 (Russian: ГУ-50) is a power pentode vacuum tube intended for 50 watt operation as a linear RF amplifier on frequencies up to 120 MHz. It is
GU-50
Type of tetrode vacuum tube
frequency. The beam tetrode produces greater output power than a triode or pentode with the same anode supply voltage. The first beam tetrode marketed was
Beam_tetrode
Vacuum tube
and sharp-cutoff Pentode - in one envelope. Each of the sections has a separate cathode and is electrically independent. The pentode section is intended
6GH8
Vacuum tube for audio applications
The EF86 is a high transconductance sharp cutoff pentode vacuum tube with Noval (B9A) base for audio-frequency applications. It was introduced by the
EF86
The 6EJ7 pentode and its equivalents are often found in high-gain vacuum tube microphone amplifiers which require the sharp cutoff of a pentode. It generally
Virtual_Valve_Amplifier
HF radio communications receiver
Type 3 6AK6 Pentode 2 5654 Pentode 4 12AU7/5814A Triode 2 26Z5W Full-Wave Vacuum Rectifier 1 3TF7 Current Regulator 6 6BA6/5749W Pentode 3 6C4/6100 Triode
R-390A
First electronic stored-program computer, 1948
tubes)—300 diodes and 250 pentodes—and had a power consumption of 3500 watts. The arithmetic unit was built using EF50 pentode valves, which had been widely
Manchester_Baby
Technical specifications and detailed information on the valve audio amplifier
Amplifying tubes containing control grids, such as triodes, tetrodes, pentodes, and beam tetrodes, are represented by families of curves measured for
Valve audio amplifier technical specification
Valve_audio_amplifier_technical_specification
Type of electronic circuit
Ultra-linear electronic circuits are those used to couple a tetrode or pentode vacuum-tube (also called "electron-valve") to a load (e.g. to a loudspeaker)
Ultra-linear
Pictogram used to represent various electrical and electronic devices or functions
triode Vacuum tube tetrode (pin letters not part of symbol) Vacuum tube pentode For multiple pole switches, a dotted or dashed line can be included to
Electronic_symbol
Discrete device in an electronic system
(see Vacuum tube). Diode or rectifier tube Amplification Triode Tetrode Pentode Hexode Pentagrid (Heptode) Octode Traveling-wave tube Klystron Oscillation
Electronic_component
Characteristic quality of sounds from vacuum tube amplifiers
their transfer characteristics. Later forms of the tube, the tetrode and pentode, have quite different characteristics that are in some ways similar to
Tube_sound
Electrode used to control electron flow within a vacuum tube
amplifying thermionic valves (vacuum tubes) such as the triode, tetrode and pentode, used to control the flow of electrons from the cathode to the anode (plate)
Control_grid
number identified a 'high slope' (sharp-cutoff) valve. For power pentodes and triode-pentode combinations, even numbers usually indicate linear (audio power
Mullard–Philips tube designation
Mullard–Philips_tube_designation
Guitar amplifier series
"Simul-Class" system, where two of the power tubes (always 6L6s) run in class AB pentode while the other two tubes (either 6L6s or EL34s) run in class A triode
Mesa/Boogie_Mark_Series
Single-grid amplifying vacuum tube having three active electrodes
and the ancestor of other types of vacuum tubes such as the tetrode and pentode. Its invention helped make amplified radio technology and long-distance
Triode
British manufacturer of electronic components
its shares to Philips in 1927. In 1928, the company introduced the first pentode valve to the British market. Mullard opened a new manufacturing plant at
Mullard
Specialized vacuum tube
and delivered an output voltage large enough to directly drive an end pentode while still allowing for some negative feedback. As most of the grids were
Nonode
Array of logic gates that are reprogrammable
Junction Gate FET (JFET) Organic FET (OFET) Light-emitting transistor (LET) Pentode transistor Point-contact transistor Programmable unijunction transistor
Field-programmable_gate_array
Type of amplifier that emphasizes a specific frequency in a noisy signal
Transcript — Dr. Robert Dicke. Michels, W. C.; Curtis, N. L. (1941). "A Pentode Lock-In Amplifier of High Frequency Selectivity". Review of Scientific
Lock-in_amplifier
Solid-state electrically operated switch also used as an amplifier
sub-microscopic, water-filled channels. Multigate devices: Tetrode transistor Pentode transistor Trigate transistor (prototype by Intel) Dual-gate field-effect
Transistor
When a particle's interactions with a material cause it to emit new particles
side effect could be put to use by using some older valves (e.g., type 77 pentode) as dynatron oscillators. This effect was prevented by adding a third grid
Secondary_emission
DC-to-DC power converter with an output voltage greater than its input voltage
Junction Gate FET (JFET) Organic FET (OFET) Light-emitting transistor (LET) Pentode transistor Point-contact transistor Programmable unijunction transistor
Boost_converter
Micro-electronic component
Junction Gate FET (JFET) Organic FET (OFET) Light-emitting transistor (LET) Pentode transistor Point-contact transistor Programmable unijunction transistor
System_on_a_chip
Electronic circuits that utilize digital signals
Junction Gate FET (JFET) Organic FET (OFET) Light-emitting transistor (LET) Pentode transistor Point-contact transistor Programmable unijunction transistor
Digital_electronics
Early form of computer memory
Junction Gate FET (JFET) Organic FET (OFET) Light-emitting transistor (LET) Pentode transistor Point-contact transistor Programmable unijunction transistor
Williams_tube
Type of vacuum tube
horizontal oscillator service. 12AE10 twin pentode. Designed for FM discriminator/detector, and audio output. 38HK7 pentode diode. Designed for horizontal output
Compactron
Electrical component that can break an electrical circuit
Junction Gate FET (JFET) Organic FET (OFET) Light-emitting transistor (LET) Pentode transistor Point-contact transistor Programmable unijunction transistor
Switch
Dutch electrical engineer (1900–1990)
– 30 August 1990) was a Dutch electrical engineer and inventor of the pentode and the gyrator. He is also known for a theorem in circuit theory, Tellegen's
Bernard_D._H._Tellegen
Integrated circuit customized for a specific task
Junction Gate FET (JFET) Organic FET (OFET) Light-emitting transistor (LET) Pentode transistor Point-contact transistor Programmable unijunction transistor
Application-specific integrated circuit
Application-specific_integrated_circuit
In the 6BX6 (pentode with g3 brought to its own pin), the screen around the assembly is not counted, whereas the 6BR7 (also a pentode with g3 brought
RETMA_tube_designation
Devices that measure magnetic field strength using the Hall effect
Junction Gate FET (JFET) Organic FET (OFET) Light-emitting transistor (LET) Pentode transistor Point-contact transistor Programmable unijunction transistor
Hall_effect_sensor
First successful type of transistor, developed in 1947
Junction Gate FET (JFET) Organic FET (OFET) Light-emitting transistor (LET) Pentode transistor Point-contact transistor Programmable unijunction transistor
Point-contact_transistor
П) – Receiver tube S (Russian: С) – Special tube, such as a tetrode, a pentode or a CRT T (Russian: Т) – Carrier frequency tube U (Russian: У) – Amplifier
Russian_tube_designations
Microchip manipulating light instead of electricity
Junction Gate FET (JFET) Organic FET (OFET) Light-emitting transistor (LET) Pentode transistor Point-contact transistor Programmable unijunction transistor
Photonic_integrated_circuit
Family of VHF/UHF vacuum tubes
The 955 is a triode. The 954 and 956 types are sharp and remote cut-off pentodes, respectively, all with indirect 6.3 V, 150 mA heaters. Types 957, 958
Acorn_tube
Device used in television cameras
Junction Gate FET (JFET) Organic FET (OFET) Light-emitting transistor (LET) Pentode transistor Point-contact transistor Programmable unijunction transistor
Video_camera_tube
Vacuum tube used to display images
Junction Gate FET (JFET) Organic FET (OFET) Light-emitting transistor (LET) Pentode transistor Point-contact transistor Programmable unijunction transistor
Cathode_ray_tube
Central computer component that executes instructions
Junction Gate FET (JFET) Organic FET (OFET) Light-emitting transistor (LET) Pentode transistor Point-contact transistor Programmable unijunction transistor
Central_processing_unit
The 7199 is a vacuum tube, combining a pentode and triode. Typically, the pentode was used for the input stage, and the triode as a phase inverter. The
7199
Frequency mixer of a superhet radio
current of 600 mA – double that of more conventional types. The use of a pentode would seem an unlikely choice for a frequency converter because it only
Pentagrid_converter
Guitar amplifier produced by Fender
Champ in having two versus one preamp stage (6SC7 dual-triode vs 6SJ7 pentode) and added the tone control that was absent in the Champs; the 12AX7-based
Fender_Princeton
Oscillator used to change Signal frequency in electronics
excellent shielding. It also uses two tuned pentode RF stages ahead of the superheterodyne mixer. Pentode tubes have virtually zero reverse gain so LO
Local_oscillator
Type of MOSFET where the gate is electrically isolated
Junction Gate FET (JFET) Organic FET (OFET) Light-emitting transistor (LET) Pentode transistor Point-contact transistor Programmable unijunction transistor
Floating-gate_MOSFET
Electronic circuit formed on a small, flat piece of semiconductor material
Junction Gate FET (JFET) Organic FET (OFET) Light-emitting transistor (LET) Pentode transistor Point-contact transistor Programmable unijunction transistor
Integrated_circuit
Vacuum tube electronic amplifier that uses a single triode to produce an output
single-ended tetrode, beam tetrode/beam power tube/kinkless tetrode, and pentode amplifiers with the same functionality and similar circuitry; e.g. this
Single-ended_triode
UK-based manufacturer of guitar amplification and effects pedals
dual channel amplifier uses pre-amp valves (most specifically the EF86 pentode) that are associated with smaller Vox amps. The range includes 15, 30,
Blackstar_Amplification
Wire screen used to suppress secondary emission in vacuum tubes
grid and the plate electrode (anode). The suppressor grid is used in the pentode vacuum tube, so called because it has five concentric electrodes: cathode
Suppressor_grid
Pentode vacuum tube
The 7AK7 is a pentode vacuum tube (thermionic valve). According to its manufacturer, Sylvania, it was "designed for service in electronic computers".
7AK7
Late vacuum tube design designed to compete with transistors
is made of metal, with a ceramic base. Triodes and a few tetrodes and pentodes were made; nuvistor tetrodes were taller than triodes. Nuvistors are among
Nuvistor
Microphone
different output transformers were used within the U 47. The VF 14 was a pentode made exclusively by Telefunken for Neumann from 1946 to 1957; the discontinuation
Neumann_U_47
Passive two-terminal electrical component that stores energy in its magnetic field
Junction Gate FET (JFET) Organic FET (OFET) Light-emitting transistor (LET) Pentode transistor Point-contact transistor Programmable unijunction transistor
Inductor
British radio receiver made during World War II
a triode-hexode frequency mixer, a variable-μ RF pentode IF amplifier and a high slope output pentode. A "Westector" solid-state copper oxide diode was
Utility_Radio
Vacuum tube
to the anode and offers significant performance improvements over power pentodes. The 6L6 was the first successful beam power tube marketed. In the 21st
6L6
Audio frequency beam tetrode
and offers significant performance improvements over comparable power pentodes. In the 21st century, the KT66 is manufactured and used in some high fidelity
KT66
Type of field-effect transistor
Junction Gate FET (JFET) Organic FET (OFET) Light-emitting transistor (LET) Pentode transistor Point-contact transistor Programmable unijunction transistor
MOSFET
Type of resistive heater
Junction Gate FET (JFET) Organic FET (OFET) Light-emitting transistor (LET) Pentode transistor Point-contact transistor Programmable unijunction transistor
Self-regulating_heater
Semiconductor laser that uses quantum dots as the active laser medium
Junction Gate FET (JFET) Organic FET (OFET) Light-emitting transistor (LET) Pentode transistor Point-contact transistor Programmable unijunction transistor
Quantum_dot_laser
Power supply connections for integrated circuits
K, not C) and grid voltages in analyses of vacuum triode, tetrode, and pentode circuits. 4000 series 7400 series Bob Widlar Common collector Differential
IC_power-supply_pin
Observatory in the United Kingdom
4C Array, with One-Mile Telescope in the background Mullard EL34 Power Pentode. Mullard produced up to 40% of thermionic valves used by Britain during
Mullard Radio Astronomy Observatory
Mullard_Radio_Astronomy_Observatory
Class of medium-low gain, pentode vacuum tube amplifiers
of medium-low gain, pentode vacuum tube amplifiers using the Noval socket configuration. Although originally marketed as pentode tubes for use in early
12BV7
Type of semiconductor
Junction Gate FET (JFET) Organic FET (OFET) Light-emitting transistor (LET) Pentode transistor Point-contact transistor Programmable unijunction transistor
Organic_semiconductor
Visual indicator of the amplitude of an electronic signal
Junction Gate FET (JFET) Organic FET (OFET) Light-emitting transistor (LET) Pentode transistor Point-contact transistor Programmable unijunction transistor
Magic_eye_tube
Type of field-effect transistor
with junction transistors and with thermionic tube (valve) tetrodes and pentodes.[citation needed] Constriction of the conducting channel is accomplished
JFET
Electronic numeric display device
Junction Gate FET (JFET) Organic FET (OFET) Light-emitting transistor (LET) Pentode transistor Point-contact transistor Programmable unijunction transistor
Nixie_tube
Type of resistor whose resistance varies with temperature
Junction Gate FET (JFET) Organic FET (OFET) Light-emitting transistor (LET) Pentode transistor Point-contact transistor Programmable unijunction transistor
Thermistor
Musical equipment manufacturer
siblings. For example, the NT15H output power can be switched between 15W pentode and 7.5W triode modes. The NT2H provides a headphone/line out jack with
Vox_(company)
Type of transistor
Junction Gate FET (JFET) Organic FET (OFET) Light-emitting transistor (LET) Pentode transistor Point-contact transistor Programmable unijunction transistor
Field-effect_transistor
Valve amplifier designed by David Theodore Nelson Williamson
inherently more stable, cheaper and efficient three-stage, ultralinear or pentode-output designs. In 1925 Edward Kellogg published the first comprehensive
Williamson_amplifier
American country musician (born 1972)
DB4 model, so named because it is "Doc & Brad's fourth amp design". The pentode preamp tube is a 5879 with EL84 output tubes. In June 2021, Paisley promoted
Brad_Paisley
Diode that emits light from an organic compound
Junction Gate FET (JFET) Organic FET (OFET) Light-emitting transistor (LET) Pentode transistor Point-contact transistor Programmable unijunction transistor
OLED
Technology for constructing integrated circuits
Junction Gate FET (JFET) Organic FET (OFET) Light-emitting transistor (LET) Pentode transistor Point-contact transistor Programmable unijunction transistor
CMOS
The 6AK5 vacuum tube is a miniature 7-pin sharp-cutoff pentode used as RF or IF amplifier especially in high-frequency wide-band applications at frequencies
6AK5
Junction Gate FET (JFET) Organic FET (OFET) Light-emitting transistor (LET) Pentode transistor Point-contact transistor Programmable unijunction transistor
List_of_RF_connector_types
Two-stage amplifier in an electronic circuit
cathode setup, the second one with a common grid) as a replacement for a pentode, and so the name may be assumed to be an abbreviation of "casc(aded triode
Cascode
Type of display device
Junction Gate FET (JFET) Organic FET (OFET) Light-emitting transistor (LET) Pentode transistor Point-contact transistor Programmable unijunction transistor
Quantum_dot_display
Automatic fuze that detonates an explosive at a predetermined distance
entered the war. Pye's group was apparently unable to get their rugged pentodes to function reliably under high pressures until 6 August 1941, which was
Proximity_fuze
Type of DC-to-DC converter
Junction Gate FET (JFET) Organic FET (OFET) Light-emitting transistor (LET) Pentode transistor Point-contact transistor Programmable unijunction transistor
Buck–boost_converter
English electronics engineer (1903–1942)
connected as a triode, and if the tap was at the supply end, as a pure pentode. Blumlein discovered that if the tap was placed at a distance 15–20% down
Alan_Blumlein
Electronic device/component that increases the strength of a signal
Junction Gate FET (JFET) Organic FET (OFET) Light-emitting transistor (LET) Pentode transistor Point-contact transistor Programmable unijunction transistor
Amplifier
Semiconductor light source
Junction Gate FET (JFET) Organic FET (OFET) Light-emitting transistor (LET) Pentode transistor Point-contact transistor Programmable unijunction transistor
Light-emitting_diode
Beam-power tetrode vacuum tube
in the audio-output-stages of "farmhouse" table-top radios, where power pentodes such as the 6F6 had previously been used. The 6V6 required less heater
6V6
Adjusting input/output impedances of an electrical circuit for some purpose
not be subjected to DC current. Reducing the output impedance of power pentodes (such as the EL34) in a common-cathode configuration. The impedance of
Impedance_matching
Diode that allows current to flow in the reverse direction at a specific voltage
Junction Gate FET (JFET) Organic FET (OFET) Light-emitting transistor (LET) Pentode transistor Point-contact transistor Programmable unijunction transistor
Zener_diode
American electronics manufacturer
independent sections-a triode and a pentode and was intended as a local oscillator mixer for TV and FM receivers. The pentode section of the tube may be used
Tung-Sol
Junction Gate FET (JFET) Organic FET (OFET) Light-emitting transistor (LET) Pentode transistor Point-contact transistor Programmable unijunction transistor
Lr-diode
Type of microwave generator
Junction Gate FET (JFET) Organic FET (OFET) Light-emitting transistor (LET) Pentode transistor Point-contact transistor Programmable unijunction transistor
Vircator
Four-layer solid-state current-controlling device
Junction Gate FET (JFET) Organic FET (OFET) Light-emitting transistor (LET) Pentode transistor Point-contact transistor Programmable unijunction transistor
Silicon_controlled_rectifier
Passive electronic component providing electrical resistance
Junction Gate FET (JFET) Organic FET (OFET) Light-emitting transistor (LET) Pentode transistor Point-contact transistor Programmable unijunction transistor
Resistor
PENTODE
PENTODE
PENTODE
PENTODE
Male
Chamoru
, fresh, vigorous, young.
Boy/Male
Greek
Father of Charon.
Surname or Lastname
English
English : habitational name from places named Coverdale in North Yorkshire and Lancashire, ‘in the valley (Middle English dale) of the Cover river (a Celtic name)’.
Boy/Male
Biblical
Hardiness or rigor of God.
Girl/Female
Muslim
Morning, Dawn (1)
Girl/Female
Arabic, Muslim, Sindhi
Dominant
Boy/Male
Indian
Beautiful
Boy/Male
Tamil
Without form
Boy/Male
French
From the grassy plain.
Girl/Female
Tamil
Name of a beautiful flower
PENTODE
PENTODE
PENTODE
PENTODE
PENTODE