Page 1. Page 2. Page 3. Page 4. Page 5. Page 6. Page 7. Page 8. Tube 6BQ5 or Röhre 6BQ5 ID, Vacuum Pentode, Noval, B9A and Power/ Output shown. Radio tubes are valves. The thin glass tube envelope is 72 mm long excluding the B9A base pins and the diameter is 20 mm. References: Datasheet, &. Type 6BQ5 was first introduced.

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In common with all ‘E’ prefix tubes, using the Mullard—Philips tube designationit has a heater voltage of 6.

Manufacturers were quick to adopt it in general use, and they are found in many old European valve radios and other audio equipment. In other projects Wikimedia Commons. This article needs additional citations for verification. Views Read Edit View history.

While not necessarily a true “military version” of the tube in fact it is more comparable to the6P14P-EVs are known for their low noise and durability.

6BQ5 @ The Valve Museum

The Sovtek EL84 datasjeet often sold under their own brand name by other well-known electric guitar and guitar amplifier manufacturers – such as Fender or Mesa Boogie.


Unsourced material may be challenged and removed. Other equivalent tubes are the and A[4] [5] an 6bs5 version of the tube for industrial applications, E84L long life, professional version with more than hours expected lifetime and the directly equivalent 6P14P Cyrillic: Please help improve this article by adding citations to reliable sources.

Vacuum tubes Guitar amplification tubes.

6BQ5 Datasheet PDF

The EL84 was developed to eliminate the need for a driver tube in radios, so it has rather more gain than is usual in a power pentode.

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Dtaasheet 23 May Developed by Philips in for use in the British Mullard amplifier, [ citation needed ] the EL84 came to prominence when used in Watkins and later the Vox amplifiers preferred by many British Invasion bands of the s. By using this site, you agree to the Terms of Use and Privacy Policy.

A single EL84 was used in low-cost equipment, and a push—pull pair for lower distortion and higher power. From Wikipedia, the free encyclopedia.

6BQ5 Datasheet

Eliminating a preamplifier triode in radios made them cheaper. As of [update] a datasheeh modified version of the 6P14P was manufactured in Russia for Sovtek.


The EL84 is smaller and more sensitive than the octal 6V6 that was widely used around the world until the s. Retrieved from ” https: This page was last edited on 24 Decemberat The EL84 is a thermionic valve datashet the power pentode type.

(Datasheet) 6BQ5 pdf – POWER PENTODE (1-page)

It is used in the power output stages of audio amplifiers, most commonly now in guitar amplifiersbut originally in radios. Retrieved 22 May The 6GK6 has nearly equivalent operating characteristics with a different pinout.

It can produce 17 W output in Class AB1 6bq push—pull configuration. Articles needing additional references from June All articles needing additional references All articles with unsourced statements Articles with unsourced statements from August Articles with unsourced statements from March Articles containing potentially dated statements from All articles containing potentially dated statements.