Posts Tagged ‘EL34’

Does Plate Dissipation Affect Valve / Tube Life In Practice ??

Thursday, November 8th, 2012

In general, the obvious connection between higher anode dissipation and shorter tube life holds good, however,  many other factors affect tube life, including accuracy of heater voltages and the efficiency of tube cooling within amplifiers.

The tube leaves the factory with a known amount of cathode coating material which is the source of all the electron emission. In use, this material is used up as it emits electrons when heated by the filament and plate current is drawn.

If plate current is drawn before the cathode is at operating temperature, the surface of the cathode can be damaged (so called ‘cathode stripping’).

This is why the Standby switch should be off when the amplifier is warming up. If, however, the tube is operated for long periods with the filament hot with little or no plate current being drawn, then an oxide-like coating can form on the cathode, effectively blocking the emission of electrons even when normal operation is required (known as ‘cathode poisoning’). TubeSync takes care of this by automatically controlling the bias at both start-up and run conditions.

vacuum tube EL34 valve

Plate dissipation is generally quoted by the manufacturer as a maximum value which, if exceeded could cause damage to the tube and should not generally be used for ‘normal’ operation. The relationship between tube life and plate dissipation follows an exponential curve. Tubes operated correctly at around 30% maximum dissipation can have lives in the region of tens of thousands of hours and can last several decades of years. This figure decreases rapidly as the dissipation increases, in some cased down to hundreds or even tens of hours as they approach or exceed their maximum plate dissipation rating.

Cooling is extremely important as running tubes very hot also increases the risk of arcing and a condition known as thermal runaway, which can instantly destroy the cathode material, making the tube useless. Conventionally biased tubes are most at risk when biased towards ‘Class-A’ operation, as they experience maximum power dissipation when no audio signal is present.

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Marshall JVM210 100W & 50W With TubeSync DIVO OV4 Installed

Friday, July 13th, 2012

What is my opinion about the TubeSync Divo OV4? (Charlotte Mijnders – http://www.charlottemijnders.nl )

Well, it has improved my sound, it is much tighter than before, on both the amps it looks like the tubes are matched much better and are pushed to their best performance.

The overall sound is more defined, tighter, more dynamic to my opinion.

On my Jvm210 I have 2 El34’s and 2 6550’s , I can switch between them and they sound as mentioned above, but the best thing is combining all the tubes together, that makes a great sound, more tight bass and bass/mid response of the 6550,and beautiful mids and mid/highs of the El34 on top of it, I like it!.

That is a great option of the Divo, that you can combine tubes in this way.

Pictures

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TubeSync Facebook Friends Are Now 2,000+

Wednesday, February 16th, 2011

Due to the growing demand TubeSync has now over 2,000 friends on Facebook!

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Click on the link above if you would like to join the TubeSync Revolution

What People Say About TubeSync

Friday, October 15th, 2010

Guitarist Mitch Laddie has been out touring with the product fitted to his Mesa/Boogie F-50, which he said sounds “incredible”. “I had totally fallen out of love with this particular amp before Tubesync was fitted but the difference in sound is more than substantial. The response and tone have been improved ten-fold. Very tight, very fat and all round punchier, especially in the low to mid frequencies.”

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“I believe the product is very interesting and definitely nothing like anything I’ve seen or used before. The main advantages of the product are that not only does it give you a valve maintenance feature by displaying a light if a fault is found within a valve, but it manages your valves to run at an equal number of milliamps. This means that each valve is working at an equal rate which in theory gives you optimum amp performance.

“You can also connect the product to a computer and by using the TubeSync software you can dial in the parameters for each valve to your liking. This makes room for a lot of exciting experimentation,” he said.

“You can fit whichever valves you like, no matter which amp you are using with the product fitted and not only can you fit whatever valves you chose but you can mix valves and it will automatically bias them with no issues at all. This also gives room for a lot of exciting experimentation which we are going to get under way when I return from the current tour.”

Orange
Technical director for Orange Amps, Adrian Emsley, plans to launch a new 100W model involving TubeSync at the upcoming Winter NAMM show next year, but didn’t disclose any further details. He did say that he thought the product was “extremely groundbreaking” with regards how it can be incorporated into high end tube guitar, bass and hi-fi amplifiers. “It can keep an amplifier perfectly set up and keep it always sounding great on the road!” he said.

Audio Kitchen Amps, an Acton-based guitar amp manufacturer, has incorporated TubeSync into its bass amps, one of which is currently being used by Kings of Leon. Audio Kitchen’s Steve Crow commented: “It’s pretty cool, that’s for sure. For me the most revolutionary aspect is the show-must-go-on factor; normally if an output valve goes bandy during a gig it’ll take out a fuse on the amp and the player is left playing air-guitar, but TubeSync will shut down the offending valve pairs and the show goes on. Genius.”?Tired Pony, the supergroup featuring Snow Patrol frontman Gary Lightbody and REM’s Peter Buck, have already played their first live gig with the help of an Audio Kitchen Base Chopper amp fitted with TubeSync, at London’s Forum venue in Kentish Town on July 14. According to Crow the band have been “loving it” so far and there are other bands lined up to try it out.

Audio Kitchen
Crow added: “People are scared of the word ‘Bias’, but TubeSync does lots of the thinking for you so it’s possibly a less daunting proposition for the average musician or tech. Also because the valves are individually biased, you don’t necessarily need matched pairs of output valves anymore.”

Hiwatt UK amplifiers, as used by the likes of Arctic Monkeys, Coldplay, Killers and The Enemy, is another adopter of the TubeSync. The company plans to install the product on its pro series of guitar amplifiers as standard. Hiwatt’s Mark Lodge said: “Pretty much all of the bands that we deal with will start to add TubeSync to their amplifiers over the next year. We are just actually putting together the wiring practices etc, for our builders to be able to incorporate TubeSync into our UK pro series custom shop amplifiers.” Lodge said the reason they have got behind the product from the start was because it is a “fantastic” piece of kit that solves many problems associated with valve amplifiers.

Hiwatt UK
He added: “We all know that valve amplifiers sound by FAR the best, the only issue is that 99.9% of the time, the valves let the amplifier down. The deteriation can be traced back to when the military ceased to use valves; since then, the quality has gone down and down. TubeSync negates this and actually once more gives builders and performers hope and peace of mind. I think it is a huge step forward for the valve amplifier.”

Wienbrock Amplifiers
Wienbrock Amplifiers owns two 45W production amps that currently use TubeSync, one with overdrive, one without. Rob Wienbrock said: “The TubeSync takes a completely new approach that has many hidden benefits. Its main advantages are significant reduction in power consumed, huge reduction in heat emissions, greatly extended valve and component life and great reduction in maintenance costs.
BREAKING THE BACKLINE MARKET

John Henry’s will be the first backline rental company to test out the TubeSync management system. Said Fallon: “We see the backline rental market as a market for us because they do have problems with amplifiers and they have to maintain the ones they’ve got when they rent them out.
“John Henry took us round his facilities and he has hundreds of amplifiers, one shelf had about 50 marshall amps on, so we realised we needed to give him something quick to install.”
John Henry commneted: “I haven’t managed to see one in action yet but from the brief overview it was a very interesting product, there’s nothing else like it, and if it works we would certainly be interested in having a look and trying it out. Anything that can tell you when a valve is about to pop is a good thing.
“I was a little bit concerned about how you actually fit it without drilling holes and damaging the authenticity of a vintage piece of kit because as it stands it’s based at the valve market. I think they need to make one which is an external fit. So it’s in the early stages and I’d need to get my engineers to test it out, but in theory it looks good.”

John Henrys
KBO Dynamics has been working on an external fit model specifically for the backline rental market. Said Fallon: “At the moment TubeSync is a circuit card that goes in the amp, but we’ve put it into a large circuit board self contained unit. It de-skills the fitting process so the user can easily retro-fit it into an existing guitar amp in around 5-10 minutes. John Henry will be the first one to test this out.”
Added Henry: “We go through thousands of valves a year so for us it would be a great asset as we might not need to replace a set of valves but maybe just one. It has a lot of potential.”

Backline Rental Companies Save Time & Money With TubeSync

Friday, October 8th, 2010

Backline rental companies don’t shell out on big, powerful expensive amps if they’re not going to be used on stage by pro musicians or semi-pro at the very least. That also means that the public shell out to go and see the artists play. Therefore, neither party will be particularly chuffed if an amp tube goes in the middle of a performance. Many travelling pro’s use the services of a backline rental company to take care of their equipment, however many tube guitar amps have problems which cannot be avoided by even the best tech.

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So yes, the pro musician or backliner probably carries a spare amp or three just in case, not to mention a box full of matched tubes!

Peace of Mind

TubeSync gives the backline tech and the musician peace of mind; simple. With TubeSync fitted in the amplifier, it’s a bit like having a dedicated amp tech working full time on that amp from the moment it’s turned on to the moment it’s turned off. Best not to fiddle around too much, then. Better still, let TubeSync do what fiddling there needs to be done. Tubesync sits within the circuitry and ensures that the pairs remain matched throughout, and micro-adjusting the biases when necessary. Four LEDs display the status of each tube, in a 100W head for example, if a failure occurs TubeSync will immediately switch out the affected pair; OK, the amp will be functioning at only half power, but at least it will be working. That’s peace of mind. Knowing that this technology is available but not using it would be a bit like driving really fast whilst wearing welding goggles. Don’t want to worry you or anything.

Crowd at the rock concertWhy Choose TubeSync

•    Performance peace of mind
•    Greater efficiency due to reduced maintenance back at the workshop
•    Can be configured to work with any fixed bias tube amp
•    Logs how the long the amp has been driven with audio
•    Records faults seen by the amp – Gives the tech full diagnostics
•    No need to purchase tubes in matched pairs anymore, TubeSync takes care of the biasing
•    Save money, better tube life / only need to change the defective tube
•    Reduces quiescent power consumption
•    Detects tube failure and prevents catastrophic damage to amp
•    Switches out faulty tubes and runs amps at half power until tube can be changed

and there’s much more….

Bias Runner Software

Improving amplifier biasing methods, servicing and fault diagnostics

Interfacing with Bias Engine hardware, the Bias Runner software has been designed to allow professional amp technicians to interrogate the status of an amplifier, alter bias settings, perform field diagnostics and configure the amp for best performance, further adding value to your services.

Bias Runner

Bias Runner is easy to install, offering full fault diagnostics, enabling tube biasing with and without audio present, either collectively or as individual tubes. It is the perfect tool for warranty provision and servicing, providing a database of hardware serial numbers and storing amplifier parameter settings for full traceability.

Please click here for your free information pack

TubeSync Service Points : Why Should You?

Friday, September 10th, 2010

TubeSync technology

TubeSync streamlines with the amp’s circuitry to constantly test and monitor the amp without altering the fundamental amplification process, tone or sound. It eliminates the need for bias current matching, increases tube life by micro-adjusting the bias on each tube, predicts tube failure and can, in the event of tube failure, even run the amp at half power, preventing catastrophic amp damage. ­­

The result is an amp unhampered by many of the problems associated with conventional tube amplification allowing musicians to enjoy classic tube sound quality without the frustrations.

These are just some of TubeSync’s unique features:

  • Eliminates the need for bias current matching of output tubes
  • Micro-adjusts the bias on each tube to ensure its full potential is realised
  • Assures reliability
  • Maintains optimum performance
  • Increases tube life
  • Reduces quiescent power consumption
  • Sets tubes at their optimum temperature as soon as you power up
  • Detects tube failure and prevents catastrophic damage to amp
  • Switches out faulty tubes and runs amps at half power until tube can be changed

A new industry standard

TubeSync technology has now been incorporated in new amp designs from some of the world’s most prominent amp manufacturers. Hiwatt, famed for their legendary reliability, was one of the first OEMs to recognise the potential of TubeSync for further enhancing the reliability and performance of their amps. KBO Dynamics continues to work with the industry’s biggest names to raise the bar in tube performance and reliability, creating a new industry standard in amp design and manufacture.

Introducing the Bias Engine

The Bias Engine is the hardware that encapsulates TubeSync’s unique technology. Fitting the Bias Engine is a straightforward procedure, with all necessary components supplied within the retrofit kit. It is stipulated that the Bias Engine is fitted by an accredited technician.

Bias engine retailThe Bias Engine is sold as a part of the TubeSync Professional Amp Upgrade Kit containing:

TubeSync Bias Engine Hardware

TubeSync hardware is wired straight into the amp’s circuitry. The Bias Engine is a very compact component that can be incorporated in both point-to-point and PCB wired amps.

Tube fault LED indicator harness and amp chassis LED plate

The Bias Engine is wired to 4 LED indicators that permanently illuminate when the tube is faulty and ‘flash’ when the tube needs to be replaced. The LEDs sit on the amp chassis, surrounded by the LED plate.

Wiring harness and mechanical fixings

The wiring harness, bundling all necessary wires and connectors, completes the kit along with a full set of mechanical fixings for securing the Bias Engine.

TubeSync Bias Runner software

Improving amplifier biasing methods, servicing and fault diagnostics

Interfacing with Bias Engine hardware, our Bias Runner software has been designed to allow OEMs and professional amp technicians to interrogate the status of an amplifier, alter bias settings, perform field diagnostics and configure the amp for best performance, further adding value to your services.Bias Runner_02

Bias Runner is easy to install, offering full fault diagnostics, enabling tube biasing with and without audio present, either collectively or as individual tubes. It is the perfect tool for warranty provision and servicing, providing a database of hardware serial numbers and storing amplifier parameter settings for full traceability.

Total service hours

Reads and displays the total number of hours the amplifier has been powered up. Optional reset facility available if required.

Total duration with audio

Reads and displays the total number of hours the amplifier has been driven with audio. Optional reset facility available if required.

Total hours idle

Reads and displays the total number of hours the amplifier has remained idle i.e. has not been driven with audio. Optional reset facility available if required.

Faulty tube log

Reads and displays the number of times a tube has been switched off due to a fault during the lifetime of the amplifier. A reset function is available for each individual tube.

Bias current (Audio present)

Enables the user to adjust tube current bias settings collectively or individually

Bias Current Idle (No Audio Present)

Enables the user to adjust tube current bias settings collectively or individually

Hardware and version status

Displays the serial number of the TubeSync module and the hardware version number

Serial number and settings database

Stores all serial numbers together with amplifier parameter settings in a   database for full traceability

Our commitment to you

We work closely with all of our partners to promote high standards and to support you in realising the full benefits of our truly innovative and impactful core technology and associated products.

As a TubeSync retailer or accredited technician you will receive:

Guaranteed product quality

All of our products are manufactured to the highest quality standards using state of the art assembly equipment. All components are ROSH compliant and uniquely identified for full batch traceability

A comprehensive solution

A complete package of hardware and software supports ease of use and easy configuration

Technical support

Our approach is founded on product and service quality. We offer our retail partners generous technical support to ensure that you are fully equipped for promoting TubeSync technology and advising your customers appropriately.

As an authorised retailer you will appoint a technician(s) who will receive training from our own technical team and who will be required to become certified as an accredited TubeSync technician before performing installations.

Warranty

All components come with a 12 month warranty which commences from the date of installation. Full warranty terms are available on request.

Guitar Amp Users – Get TubeSync Fitted!

Wednesday, September 8th, 2010

With TubeSync fitted in your amp there is no need to match output tubes. Drop in any combination of makes OR EVEN TYPES!!! (EL34, KT77, KT88, 6L6 etc) and TubeSync will automatically sense and adjust the output bias of each tube independently to balance the amp. Imagine what new tones you can create from those limitless output tube combinations! You can even run a 2 X EL34s and 2 X 6L6s in your 100W head simultaneously, alternately you can use the half power mode and switch between  6L6s or EL34s at 50W output power, now that’s cool!Rock Star

Read on to find out how you can get TubeSync fitted into your amp

TubeSync can only be installed by accredited engineers via ‘TubeSync Service Points’. To find the nearest TubeSync Service Point near you, please click on the image blow

TubeSync Service Point

TubeSync Bias Engines Roll Off The Production Line

Friday, August 20th, 2010

Due to popular demand the TubeSync Bias Engine is now in volume production!

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For order enquiries please email sales@tubesync.co.uk

Leaky Tubes / Valves Can Blow the HT Fuse In Guitar Amps, TubeSync Can Avoid This!

Thursday, July 1st, 2010

An interesting phenomenon that some ‘leaky’ tubes, removed from conventionally biased amps, appear to improve when run with TubeSync. The reason may be that when the tube gets hot, g1/cathode leak causes a current increase, but it is automatically biased ‘back’ to compensate, which allows the tube to cool down again and thus reduce leakage et al. After a while the leak sometimes reduces or disappears completely – we surmise that the getter  gets a chance to mop up stray gas molecules or the metallic deposit gets ‘boiled off’ the mica supports.  This type of fault in a conventional amp would normally blow the HT fuse, however TubeSync can avoid is and rectify the problem! Cool eh?

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Duesenberg Boutique Amps Make TubeSync A Standard Integral Component.

Sunday, June 13th, 2010

After extensive testing, Duesenberg Boutique Amps select TubeSync as a standard part of their high quality boutique amplifier range.

Duesenberg is better known for their high quality guitars. In a unique way Dieter Goelsdorf´s Duesenberg design consolidates guitar construction, features and sounds which have written music history. The art deco style design of headstock, pickguard and metal components gives Duesenberg its own eye-catching look, while the body design bases on the old traditional Jazz guitars like being built from the 40s in Europe and in the USA.

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These design elements are combined with the best possible electric guitar construction values of the 50s: Grand Vintage Alnico pickups, classical Fender scale length plus a Gibson-like fingerboard radius. Most of the vintage-style tailpieces, bridges, tremolos, pickups and controls come with greatly improved details.

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The Duesenberg Doozy Two amp as pictured above is hand-wired and built in Germany, It is equipped with EL34 power tubes at 110 watts, but with the capabilities of also switching to 55 watts. This all around two channel amp comes with a switchable gain stage for the drive channel as well as serial loops for each channel. Duesenberg are proud to announce that TubeSync technology will be fitted as standard on new models manufactured after July 2010. ‘’TubeSync enhances reliability without changing the tone of the amp’’ More exciting TubeSync features will be announced shortly!

For more information visit :

http://www.tubesync.co.uk

http://www.duesenberg.de