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El34 amplifier replacement

The EL34 is a thermionic vacuum tube of the power pentode type, first made in It has an international 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 its high permissible voltage between heater and cathode and other parameters. In common with all 'E' prefix tubes, using the Mullard—Philips tube designation , the EL34 has a heater voltage of 6. According to the data sheets found in old vacuum tube reference manuals, a pair of EL34s with V plate voltage can produce 90 watts output in class AB1 in push—pull configuration. However, this configuration is rarely found. More commonly found is a pair of EL34s running class AB1 in push—pull around — V plate voltage and producing 50 watts output if fixed bias is used , while a quad of EL34s running class AB1 in push—pull typically run anywhere from to V plate voltage and produces watts output.


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WATCH RELATED VIDEO: Crate 50 Vacuum Tube EL34 Guitar Amplifier Under Repair and Test - Part all-audio.pro

Replacement Tubes


Once Pat opened it up, it was clear why that was the case. It was a mess of rust, dust, missing parts, and the likely victim of at least one spilled beer. Got rid of that dust that covered the preamp tubes all of which were working fine and scrubbed away at the rust that covered the power tube sockets.

We flipped it on and it roared! What a great sounding amp. Rusted handles and an air vent right above the rusty area? Hmmm… you can almost smell the spilled beer. Get those drinks off your amps guys! Ive got a JCM with lots of rust on the inside like this one. What did you use to get rid of the rust? Cheers Mike. Your email address will not be published. Virtual Workbench Look over our shoulders! New repairs and projects show up constantly, so check back in, or subscribe for delivery to your digital doorstep.

Speaking of that rust, how did it get there? Ivan on October 21, at am. Cheers and keep the great work. Matt Smith on January 2, at pm. Steve on January 3, at pm.

Thanks Ivan, those were typos. Good eye. Mike Atome on March 23, at pm. Steve on March 26, at pm. Submit a Comment Cancel reply Your email address will not be published.

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Marshall EL34-50 50 Amp

Conservatively rated at 10 watts per channel. EVH III heads and cabinets deliver the holy grail of tone - a truly clean channel, a super-heavy crunch channel and an off-the-scale overdrive channel you simply won't believe. Get a low price and free shipping on thousands of items. It is the perfect EL34 for vintage equipment and a sure way to improve the performance of modern equipment. Pricing above includes matching in any quantity you need at no extra charge. Even if you have a PrimaLuna which runs tubes really easy you need to know these can fail more often.

T Psvane Hifi El34b Vacuum Tube Replace 6ca7 El34 For Hifi Audio Vintage Tube Amplifier Diy Factory Test&match, Find Complete Details about T

Marshall JCM800 Amp Repair


Tube Substitutions. There are a lot of amps that can use different tubes to change or improve their tone for different styles of playing. Now if you want a little less power and an earlier breakup you can have it! The JJ EL is an entirely new tube that dissipates 9 watts and is a drop in replacement for EL84's in most all amps. It has a very smooth sweet breakup just like the JJ EL84 and it will breakup a couple decibels earlier. Wait a minute!! Who says?? Thanks to Mark Beach a loyal customer of ours who reminded us that we needed to change this page there are now two solutions for Fender Deluxe amps. By choosing the proper grade these can be run in the EL34 mode and have the best clean tone we've ever heard from a Dual Rec. They also have a deeper thump and breakup earlier than 6L6's do.

Best Replacement Tubes / Valves in Australia

el34 amplifier replacement

You have selected the. Guitar players are quick to defend the how-and-why of their preferences and the type of tube used is a common jumping-off point for what makes an amp great. The long story may well provide you with some new insights as to how to approach tube tone and regardless of your tube preference, you may find yourself appreciating both for their inherent specialties. The many patents we hold covering all aspects of the power amp — from Channel Assignable Wattage, Switchable Rectifiers, Switchable Classes of Operation and even Wiring Styles hints at our inclusion of the power amp as a huge part of the tonal greater good.

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Svetlana el34 review


These Selected Premium Grade valves deliver superior tone, power and performance. Certainly the best value for money amplifier valves on the market today. You can also order these amplifier valves singly or the power valves as matched pairs. It is always recommended that you change all your valves at the same time if you possibly can. So treat yourself to a new set of valves today.

El34 specs

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Related Videos: Shiva EL34 watt 1x12" Tube Combo Amp with EL34 Tubes and Dual Reverb The EL34 in our stock is suited for replacement or upgrading.

This guide has been built in place of our K conversion kit which was previously available for purchase. Now, you can simply purchase the required parts below and follow through this guide. Changing the screen grid resistors along with altering the bias circuit is required for this modification.

Does this feedback sound happen with the guitar unplugged from the input socket of the amp? Try switching between channels at rehearsal or gig settings without your guitar plugged in and if it still does this, changing V1 the preamp valve nearest to the input for a low noise and low microphonic valve will help. However, there are things you can do to reduce the gain. Derek at Watford Valves is very helpful so if you tell him what you are trying to do, he can recommend the best valves for the job.

Discussion in ' The Workbench ' started by siav , Jun 23, Log in or Sign up.

Discussion in ' Audio Hardware ' started by elaterium , Oct 25, Log in or Sign up. Steve Hoffman Music Forums. When to replace tubes? Sorry if this seems like too basic a question, but when should one replace the tubes in ones amp?

By George 47 , July 24, in 2 Channel. Has anyone any experience of using these valves and what was the outcome? As I am sure you know, the is a 6L6 variant. So I am assuming your amp has a facility to switch between the two types as the plate current is different.




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  1. Taukus

    good fellows!

  2. Iphicles

    You are absolutely right. In this something is I think that it is the excellent idea.

  3. Karlyn

    It's just the conditionality