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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…
The analysis highlights Applications, Art and Measurement as prominent areas in the source structure around EL34.
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.
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.
High-confidence facts extracted from structured source data. Use them as anchors for further research.
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.
Deeper signals for content research, entity SEO and topical coverage. The plain-language headings explain what each technical view is useful for.
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.
Use these terms to understand the vocabulary surrounding the topic, not as a checklist for keyword stuffing.
tube 6l6 voltage found mullard tubes power output pentode vacuum heater 6ca7 philips used audio similar also amplifiers watts type
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.
| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| EL34 | Amplification factor | 11 | 1.00 | infobox |
| EL34 | Anode current | 100 mA | 1.00 | infobox |
| EL34 | Anode current | 2* 120 mA | 1.00 | infobox |
| EL34 | Anode resistance | 2 k Ohms | 1.00 | infobox |
| EL34 | Anode resistance: (anode to anode) | 3.4 k Ohms | 1.00 | infobox |
| EL34 | Anode voltage | 265 V | 1.00 | infobox |
| EL34 | Anode voltage | 420 V | 1.00 | infobox |
| EL34 | Bias voltage | −13.5 V | 1.00 | infobox |
| EL34 | Bias voltage | −38 V | 1.00 | infobox |
| EL34 | Cathode type | Indirectly heated | 1.00 | infobox |
| EL34 | Classification | Pentode | 1.00 | infobox |
| EL34 | Diameter | 1.5 in (38 mm) | 1.00 | infobox |
| EL34 | Heater current | 1.5 A | 1.00 | infobox |
| EL34 | Heater voltage | 6.3 | 1.00 | infobox |
| EL34 | Height | 4.44 in (113 mm) | 1.00 | infobox |
| EL34 | Max dissipation Watts | 25 | 1.00 | infobox |
| EL34 | Max voltage | 800 | 1.00 | infobox |
| EL34 | Power output | 55 W | 1.00 | infobox |
| EL34 | Screen voltage | 250 V | 1.00 | infobox |
| EL34 | Screen voltage | 375 V | 1.00 | infobox |
| EL34 | Service | class-A amplifier, class-AB amplifier, class-B amplifier, (audio amplifiers) | 1.00 | infobox |
| EL34 | is a | thermionic vacuum tube of the power pentode type | 0.90 | text |
| EL34 | is a | pentode | 0.90 | text |
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.
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.
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