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The EL84 is smaller and more sensitive than the octal 6V6 that was widely used around the world until the s. Right now I want to finish my transistor amp and then belt out several wood projects. All times are GMT In simpler term, triode is half of pentode. I haven’t played much with SRPP circuits and might learn a lot by reading about them. You have to use triodes for this sort of PI because the plate current has to match the cathode current. By using this site, you agree to the Terms of Use and Privacy Policy.

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Generally, I agree with most of the previous posts and the concepts. This page was last edited on 24 Decemberat To successfully use it you’d want prntode triode-strap it. So this is another reason the triode mode will sound darker.

Bugera EL84 Premium Power Pentode Amplifier Tube BUGERA EL84 B&H

Retrieved 23 May EL84 pentode as driver Posted: The extra cathode current leaving through the screen grid would cause an imbalance in the voltages at the plate vs the cathode. Sun Jan 29, 6: I have yet to see a truly high fidelity audio amplifier which benefited from such an arrangement. Sat Jan 28, 5: Right now I want to finish my transistor amp and then belt out several wood projects. It can produce 17 W output in Class AB1 in push—pull configuration.


June Learn how and when to remove this template message. The 6V6 is very well behaved in class A2 and, with an appropriate driver, has a very unique sound when over driven. It is perfectly valid to treat the anode curve as a straight line, and to project this line onto our load line in order to find the gain.

If the 2A3 has a positive grid throughout the whole cycle, you’ve successfully built a space heater. I do however feel that the thoughts relating to using something like a 12AX7 as a driver for a power tube are not entirely correct.

The Sovtek EL84 is often sold under their own brand name by other well-known electric guitar and guitar amplifier manufacturers – such as Fender or Mesa Boogie. In my super-stereo amp using KT88s, I think I will build the driver stage using a 6V6 per channel as a triode split-load inverter. Mon Jan 30, 4: While not necessarily a true “military version” of the tube in fact it is e,84 comparable to the6P14P-EVs are known for their low noise and durability.

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When we come to calculate the gain, we find that the anode pentlde begins to curve as we reach its intersection with the load line. Manufacturers were quick to adopt it in general use, and they are found in many old European valve radios and other audio equipment. I used the s, because I originally designed most of the amps with 6SL7s and 12SL7s in mind and they have nearly the same characteristics as the Sat Jan 28, 4: Mon Pentose 30, 6: Please help improve this article by adding citations to reliable sources.


Does an SET amp generally run in class A2? 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.

From Wikipedia, the free encyclopedia. I must have read this many years ago somewhere, I think it was in Penttode Hiragas book. I’m getting a bit ahead of myself.

Projection on the axis Va of intersection of the load line and the -8V curve gives us V. Eliminating a preamplifier triode in radios made them pejtode. 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.

As of [update] a slightly modified version of the 6P14P was manufactured in Russia for Sovtek. In turn, the value of C3 will be equal to uF for a 1 Hz cut-off frequency.