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EL34: Applications, Art & Measurement

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 octal base (indicated by the '3' in the part number) and is found mainly in the final output stages of audio amplification circuits; it was also designed to be suitable as a series regulator by virtue of…

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EL34 topic overview

The analysis highlights Applications, Art and Measurement as prominent areas in the source structure around EL34.

Related topics
33
Source areas
4
Connected nodes
37
Extracted relationships
75
Concept neighborhoods
18
Bridge connections
37

What this topic covers Research coverage

Source areas are shown by the number of related topics found in each part of the analysis. Use smaller areas too: they can reveal specialized angles and content gaps.

Application · 12 topics
Specifications · 12 topics
Overview · 7 topics
Similar tubes · 2 topics

Smaller areas are not necessarily less important. They contain fewer connections in this analysis and can be useful for finding specialized angles or coverage gaps.

Key facts & relationships

High-confidence facts extracted from structured source data. Use them as anchors for further research.

Amplification factor
11
Anode current
100 mA · 2* 120 mA
Anode resistance
2 k Ohms
Anode resistance: (anode to anode)
3.4 k Ohms
Anode voltage
265 V · 420 V
Bias voltage
−13.5 V · −38 V

Explore all related topics Closing gaps

Browse the complete topic structure, not only the most central items. Less prominent entities and concepts can reveal missing angles, specialized context and useful research gaps. Each item opens a new analysis centered on that subject.

Overview

Specifications

Application

Similar tubes

  • KT77 KT77?action=edit&redlink=1
  • 6P27S 6P27S?action=edit&redlink=1

Advanced semantic analysis

Deeper signals for content research, entity SEO and topical coverage. The plain-language headings explain what each technical view is useful for.

How EL34 connects Entity context

The extracted context around EL34 shows recurring relationship patterns in the source. For example, EL34 → AB1, According, Although, Amp, Amps, Australia, Australian Sound, EIA, EL34s, Examining, GE, However, In, More, Mullard, One, Philips, Pin, RCA, Sylvania Another extracted example is EL34 → American, British, Dynaco Stereo, Fender/Mesa Boogie, Hiwatt, KT66, KT88, Leak TL25, Marshall, Orange, Plexi, Stereo, The EL34, Vox. Use these groups to spot repeated connection types before inspecting the individual relationships.

EL34

Top relations

related to Specifications · 23
EL34 → AB1, According, Although, Amp, Amps, Australia, Australian Sound, EIA, EL34s, Examining, GE, However, In, More, Mullard, One, Philips, Pin, RCA, Sylvania
related to Application · 14
EL34 → American, British, Dynaco Stereo, Fender/Mesa Boogie, Hiwatt, KT66, KT88, Leak TL25, Marshall, Orange, Plexi, Stereo, The EL34, Vox
related to References · 13
EL34 → Archived, E34L, JJ Electronics EL34, PDF, Philips Metal Base Archived, RC26, RCA, RCA Receiving Tube Manual, Technical, Valvo Taschenbuch, Wayback Machine, Wayback MachineEL34 EI Yugoslavia, Wayback MachineValvo Gmbh
Anode current · 2
EL34 → 100 mA, 2* 120 mA
Anode voltage · 2
EL34 → 265 V, 420 V
Bias voltage · 2
EL34 → −13.5 V, −38 V
Screen voltage · 2
EL34 → 250 V, 375 V
is a · 2
EL34 → pentode, thermionic vacuum tube of the power pentode type
related to External links · 2
EL34 → Data Archive, Duncan's Amps TDSLReviews
Amplification factor · 1
EL34 → 11

Important terminology

Use these terms to understand the vocabulary surrounding the topic, not as a checklist for keyword stuffing.

Important terminology

tube 6l6 voltage found mullard tubes power output pentode vacuum heater 6ca7 philips used audio similar also amplifiers watts type

EL34 relationships Subject–Predicate–Object triples

TTTA extracted 75 structured relationships around EL34. Examples in this analysis include EL34 → Amplification factor → 11 and EL34 → Anode current → 100 mA. The table shows each extracted connection, where it came from and its confidence.

SubjectPredicateObjectConfidenceSrc
EL34Amplification factor111.00infobox
EL34Anode current100 mA1.00infobox
EL34Anode current2* 120 mA1.00infobox
EL34Anode resistance2 k Ohms1.00infobox
EL34Anode resistance: (anode to anode)3.4 k Ohms1.00infobox
EL34Anode voltage265 V1.00infobox
EL34Anode voltage420 V1.00infobox
EL34Bias voltage−13.5 V1.00infobox
EL34Bias voltage−38 V1.00infobox
EL34Cathode typeIndirectly heated1.00infobox
EL34ClassificationPentode1.00infobox
EL34Diameter1.5 in (38 mm)1.00infobox
EL34Heater current1.5 A1.00infobox
EL34Heater voltage6.31.00infobox
EL34Height4.44 in (113 mm)1.00infobox
EL34Max dissipation Watts251.00infobox
EL34Max voltage8001.00infobox
EL34Power output55 W1.00infobox
EL34Screen voltage250 V1.00infobox
EL34Screen voltage375 V1.00infobox
EL34Serviceclass-A amplifier, class-AB amplifier, class-B amplifier, (audio amplifiers)1.00infobox
EL34is athermionic vacuum tube of the power pentode type0.90text
EL34is apentode0.90text

Related concept clusters Concept neighborhoods

The concept neighborhoods around EL34 bring nearby vocabulary together. In this analysis, examples include 6l6, Philips and Power. Use the clusters to find adjacent concepts and terminology that may deserve separate research.

  • EL34
    • 6l6
    • Philips
    • Power
    • Tubes
    • Tube
    • Also
    • Amps
    • Audio
    • Base
    • Heater
    • Mullard
    • Pentode
  • el34
    • 6l6
    • Philips
    • Power
    • Tubes
    • Tube
    • Also
    • Amps
    • Audio
    • Base
    • Heater
    • Mullard
    • Pentode
  • vacuum tube
    • Watts
    • Voltage
    • 6ca7
    • Pentode
    • Vacuum
    • Output
    • Power
    • 6p27s
    • Tung-sol
    • Designation
    • Bias
    • Configuration
  • pentode
    • Power
    • Tetrode
    • Type
    • Beam
    • Similar
    • Vacuum
    • Output
    • Tube
    • Amplification
    • Cathode
    • Designation
    • Tung-sol
  • audio
    • Also
    • Amplification
    • Cathode
    • Octal
    • Application
    • Heater
    • Amplifiers
    • Output
    • Power
    • Tubes
    • Voltage
    • El34
  • retma tube designation
    • Number
    • Tung-sol
    • 6ca7
    • Application
    • Bias
    • Heater
    • Mullard
    • Pentode
    • Type
    • Vacuum
    • Output
    • Power
  • mullard–philips tube designation
    • Philips
    • Tung-sol
    • Number
    • Vacuum
    • Tubes
    • 6ca7
    • Amplification
    • Application
    • Bias
    • Cathode
    • Designation
    • Heater
  • guitar amplifiers
    • Application
    • Audio
    • Guitar
    • Type
    • Used
    • Watts
    • Power
    • Tubes
    • Octal
    • Cathode
    • Designation
    • Tetrode

Connections between topic areas Semantic bridges

For EL34, one of the stronger structural bridges in this analysis connects EL34 with Specifications. Bridges highlight paths between different parts of the map and can reveal research angles that are easy to miss in a flat list.

Min side: 3
EL34Specifications · splits 25 ⟂ 13
EL34Application · splits 25 ⟂ 13
EL34Overview · splits 30 ⟂ 8
EL34Similar tubes · splits 35 ⟂ 3

Map overview Semantic statistics

EL34

Nodes38
Edges37
Triples75
Avg. degree1.95
Density0.052632
Components1

Source & methodology

TTTA analyzes the structure around EL34 to surface related topics, entities, relationships, concept neighborhoods and bridge connections. Use the map to explore areas such as Applications, Art & Measurement, including less central topics that may reveal useful research gaps. Automatically extracted connections are research leads rather than rewritten encyclopedia content.

Source: Wikipedia — EL34 · EN edition · Analysis: TopicsToTalkAbout

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