Posts Tagged ‘Musikmesse’
Tuesday, November 1st, 2011
Tube Testing – A common requirement for tube amplifiers used for professional and stage purposes is that there should be a high percentage of confidence that one or more tubes will not fail during the performance. Tubes are often thought of in the same manner as light bulbs, in that they are most likely to fail catastrophically at switch on. This means that the moments just after the switch on point constitute the most stressful and potentially damaging periods in the life of the equipment.In an attempt to guard against this possibility, it is common practice to do one of two things on a regular basis.
1/ regularly remove the tubes and have them commercially tested;
2/ replace the tubes with new stock on a regular basis.
These two methods may give the operator a degree of confidence ///but in fact, it can be shown that the faith placed in both methods is misplaced.
It is a known fact that removal of a tube from its socket results in a number of potentially damaging mechanical stresses on the metal to glass seals around the pins. Each insertion of an all glass tube will cause micro-cracking of the glass around the pin. This will invariably cause a small leakage of air into the tube, causing ‘gassing’ and eventually leading to its demise.
Removal for testing will also break the intimate contact between the holder and the tube contact pin, resulting in a poorer contact on re-insertion.
Many tube testers apply unreasonable electrical stresses to the valve internal electrodes and it is not uncommon for a known good valve to be damaged during the test. Tube testers can also give erroneous results depending on the way they perform the tests, possibly allowing faulty tubes to show ‘good’ and the good valves to be rejected as ‘bad’.
The second method of ‘blanket replacement’ with new stock on a regular basis can also lead to problems because if the failure distribution curve for tubes is analysed, it can be seen to follow the classic ‘bathtub’ failure curve. This inevitably means that an amplifier which is regularly ‘re-tubes’ will inevitably be considerably more likely to fail during the first hundred hours service than one which has been left untouched.
TubeSync overcomes these problems by performing an ‘in circuit’ test on the tubes every time the amplifier is powered up. The mutual conductance (gm) of the tube is measured by monitoring the cathode current of each valve whilst adjusting the grid bias in fixed steps. The results are tabulated and the new value is compared with previously stored values. A decision is then made on how far the tube has decayed in emission since the last test. Outputs from the device inform the user of the predicted remaining life of the tube.
Tags: 6v6, anode, Hiwatt at Musikmesse, Musikmesse, technician, Tube Amp Doctor, Tubes, TubeSync Bias Engine, UK, valve, valve matching Posted in Tube Amplifiers | Comments Off
Thursday, April 21st, 2011
Orange Amps presents DIVO with TubeSync technology. DIVO helps increase the life of your tubes, protects against unexpected tube failure, and even allows for (4) different tube types to be installed in the same amp.
DIVO will come pre-installed on select Orange Rockerverb 100 MKII heads beginning Summer 2011. The OV4 stand-alone unit, also available in 2011, can be installed on almost any amp that has (4) power tube slots.

Tags: 6v6, amp, Amp Fix, Bias Engine, bias problems, biasing, Dark Terror, Dennis Marshall, DIVO, Doug doppler, EL34 Valve, guitar, guitar amp repair, Guitarist Magazine, Hiwatt at Musikmesse, John Beer, KBO Dynamics, Marshall, Musikmesse, Orange Amps, Orange DIVO, Output transformer, Rock, Rockerverb 100 Head, Scotand, Summer NAMM, UK, valve matching, valves Posted in TubeSync | Comments Off
Wednesday, April 13th, 2011
Doug Doppler Demos Orange Amps Rockerverb 100 with DIVO Musikmesse 2011
 Orange Amps Rockerverb 100 with DIVO Musikmesse 2011 / Doug Doppler
Tags: 2011, amp, bias problems, DIVO, doppler, doug, Doug doppler, EL34 Valve, Frank, Frankfurt, KBO Dynamics, Marshall, Musikmesse, Musikmesse 2010, orange, Orange DIVO, Rockerverb 100 Head, Rockerverb 100 MKII, Rockerverb 50 Head, Technology, Tubes, TubeSync, TubeSync Bias Engine Posted in TubeSync | Comments Off
Friday, April 1st, 2011
Checkout the TubeSync DIVO review in the April 2011 Guitarist Magazine.
”TubeSync DIVO works perfectly and does an excellent job of keeping even the most wayward valves on the straight and narrow. If you want to get the absolute best out of your amp and improve its reliability, DIVO is almost an essential – it’s a real innovation”.

Tags: 2011, 6v6, amp, Bias Engine, cathode, DIVO, Frankfurt, guitar, hi, KBO Dynamics, Musikmesse, Musikmesse 2010, new, orange, Orange DIVO, Orange ov4, Output transformer, retro fit, technician, TubeSync, TubeSync Bias Engine, UK, valve, valve matching, valves, whats new at Musikmesse 2011 Posted in Tube Amplifiers | Comments Off
Saturday, March 12th, 2011
Mitch Laddie and Michael Blackwell checkout the new Orange Rockerverb 100 head with DIVO. The verdict was 10 out of 10!



Tags: 2011, Custom, Demo, Frankfurt, Guitarist Magazine, Hiwatt at Musikmesse, Jamming, Michael Blackwell, Mitch Laddie, Musikmesse, Musikmesse 2010, Musikmesse 2011, orange, Orange Amps, Orange DIVO, Orange ov4, review, Rockerverb 100 Head, Rockerverb 100 MKII, Tinny Terror, US, whats new at Musikmesse 2011 Posted in Tube Amplifiers | Comments Off
Tuesday, February 22nd, 2011
A common requirement for tube amplifiers used for professional and stage purposes is that there should be a high percentage of confidence that one or more tubes will not fail during the performance. Tubes are often thought of in the same manner as light bulbs, in that they are most likely to fail catastrophically at switch on. This means that the moments just after the switch on point constitute the most stressful and potentially damaging periods in the life of the equipment.
In an attempt to guard against this possibility, it is common practice to do one of two things on a regular basis.
1/ regularly remove the tubes and have them commercially tested;
2/ replace the tubes with new stock on a regular basis.
These two methods may give the operator a degree of confidence but in fact, it can be shown that the faith placed in both methods is misplaced.
It is a known fact that removal of a tube from its socket results in a number of potentially damaging mechanical stresses on the metal to glass seals around the pins. Each insertion of an all glass tube will cause micro-cracking of the glass around the pin. This will invariably cause a small leakage of air into the valve, causing ‘gassing’ and eventually leading to its demise.
Removal for testing will also break the intimate contact between the holder and the tube contact pin, resulting in a poorer contact on re-insertion.
Many tube testers apply unreasonable electrical stresses to the tube internal electrodes and it is not uncommon for a known good valve to be damaged during the test. Tube testers can also give erroneous results depending on the way they perform the tests, possibly allowing faulty tubes to show ‘good’ and the good valves to be rejected as ‘bad’.
The second method of ‘blanket replacement’ with new stock on a regular basis can also lead to problems because if the failure distribution curve for tubes is analysed, it can be seen to follow the classic ‘bathtub’ failure curve. This inevitably means that an amplifier which is regularly ‘re-tubes’ will inevitably be considerably more likely to fail during the first hundred hours service than one which has been left untouched.
TubeSync overcomes these problems by performing an ‘in circuit’ test on the tubes every time the amplifier is powered up. The mutual conductance (gm) of the tube is measured by monitoring the cathode current of each valve whilst adjusting the grid bias in fixed steps. The results are tabulated and the new value is compared with previously stored values. A decision is then made on how far the tube has decayed in emission since the last test. Outputs from the device inform the user of the predicted remaining life of the tube.

Tags: 2011, 6v6, amp, anode, Ashdown, bass, bias, bias problems, biasing, current, Frankfurt, Hiwatt at Musikmesse, Hiwatt custom amp, KBO Dynamics, Musikmesse, NAMM 2011, orange, Output transformer, technician, Technology, Tube Amp Doctor, Tubes, TubeSync, TubeSync Bias Engine, valves Posted in Tube Amplifiers | Comments Off
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.

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.
Why 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 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
Tags: 6v6, Amp tech, Ashdown, audio, backline, bass, EL34, Frankfurt, Germany, Hiwatt custom amp, John Henry, John Henrys, London, musicbank, Musikmesse, Output transformer, perform, Rental, Sound, sound and light, stage, terminal, tpi magazine, Tubes, TubeSync, TubeSync Bias Engine, UK, valve, valve matching Posted in Tube Amplifiers | Comments Off
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.

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.

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
Tags: 12AX7, 6v6, amp, anode, Bob Dylan, Boutique, Curt Smith, Custom, Doozy One, Doozy two, Duesenberg, Duesenberg USA, EL34, Eric Bazilian, Frankfurt, Gaby & Claudia, Germany, guitar, hi end, Hiwatt custom amp, Jörg Weisselberg, KBO Dynamics, Musikmesse, Musikmesse 2010, Output transformer, Randy Kohrs, technician, tube amp, TubeSync, USA, valve amp, valve matching, valves, vintage, Yogi Lonich Posted in Tube Amplifiers | Comments Off
Friday, June 11th, 2010
Bulldog Amplification builds handcrafted tube amps in Germany to meet the ever demanding needs of musicians in terms of tone and reliability. Years of experience in repairing and modifying tube amps has lead to an exclusive line of guitar amplifiers. These instruments are built to produce the best possible tone. Most of today’s amps offer many different sounds and functions, but the guitar signal has to pass through various paths of electronic circuitry until it reaches the speaker, consequently the tone is weakened. Tone and bullet proof reliability are the most important things for Bulldog Amplification and that’s why Bulldog is delighted to announce that TubeSync will become standard within their The Jack 66, Jack 18, Black Bert 1, and Den Lachs amplifier models.

The ‘’Jack 66’’
‘’The combination of TubeSync with short signal paths and other high quality components make our amplifiers world class and due to this, Bulldog Amplification is becoming a preferred choice by professional artists and serious guitar players’’.

The TubeSync ‘’Bias Engine’’
‘’ Robust, bomb proof reliability, with enhanced functionality and perfect tone is what we want’’ – says Ingo Bührmann from Bulldog Amplification. Ingo goes on to say…
‘’Cheap poorly designed products from China are fast becoming unacceptable to guitar players especially within Germany, where high quality engineering is embedded within our culture’’ You would buy a car if the drive was terrible and it broke down when you needed it the most, well would you? ‘’ I believe the same philosophy applies to guitar amplifiers, high performance and reliability is paramount’’.
Bulldog Amps are currently used by a number of high profile bands such as the massively popular German band Guano Apes and Livingston. Bulldog amps with TubeSync will soon be appearing on a stage near you!
 Guano Apes
 Livingston
For more information on TubeSync email:
UK: info@tubesync.co.uk
Germany: info@bulldog-amps.com
Tags: amp, anode, backliners, bass, bias, Bias Engine, bias problems, Broken, Bulldog, Bulldog amplification, Bulldog amps, Duesenberg, Duesenberg Amp, EL34, Frankfurt, gain, German, Germany, Guano Apes, guitar, Göldo, Ingo Bührmann, Kluson, Livingston, Musikmesse, Musikmesse 2010, Roger Mayer, Sound, technician, tube, TubeSync, TubeSync Bias Engine, UK, valve matching Posted in Tube Amplifiers | Comments Off
Thursday, April 1st, 2010
IT TAKES more than sex, drugs and rock ‘n’ roll to make a guitarist sound great. John Hill meets North East amplifier makers at the cutting edge of technology.

ANDY Fallon and Colin Arrowsmith are not guit- arists. Their affair with the valve amplifier isn’t born of a youth spent practising solos or arguing over kit specifications next to the counter of their local guitar store.
In fact, Andy’s experience lies in automotive and military engineering, while Colin is an expert in microelectronics.
However, their contribution to a piece of kit beloved of the White Stripes, The Who and Black Sabbath has attracted the attention of major international amp-makers.
Andy and Colin are co-founders of KBO Dynamics, a Consett company created to market technology designed to improve audio and guitar amplification.
They are the men behind TubeSync, a “tube management system” which monitors the performance of valve amplifiers to avoid meltdowns while maintaining sound.
The product won the innovation award in the Durham and Wearside heat of the nebusinessawards 2009, run by The Journal and Evening Gazette.
KBO co-founder Andy said: “We were looking for a niche market. Neither of us plays the guitar, but we did a lot of brainstorming.
“Colin worked with microelectronics, but he’s also an expert with valve technology. We realised very quickly that the biggest application for valves was inside guitar amps.”
The valve amp isn’t exactly a rapidly advancing technological product. The technology was developed between the world wars and uses a series of vacuum tubes to regulate a signal. It was present in items from TVs to radios, but fell out of favour in the 70s.
The resurgence of such equipment has been prompted by high-end users in the audio and guitar amp market, who praise its natural sound.
Andy said: “There’s a warmer, more rounded tone to it. Anyone who’s serious about playing a guitar would only use a valve amp.”
When they developed TubeSync, the pair didn’t set out to change the sound. Instead, they set their sights on the downside, the problems that plague valve amp users looking for that special sound.
He said: “The closest you can compare it to is an engine management system on a car. It’s like having a maintenance technician looking after your amp 24/7 without you noticing it. It’s continuously monitoring the circuit, looking for faults.
“We got a market research report from Think M in Newcastle. It conducted a series of live interviews with OEM companies and guitarists.
“We looked at the problems people were talking about, but we didn’t change the sound.
“It can detect faults. It can disconnect a pair of valves if it finds one is faulty. You normally have to buy valves in matched pairs and you need to take the amp to a technician to tweak it, but with TubeSync you only need to buy one valve if one fails and it can tweak the system for you.
“One faulty valve can blow up the output transformer. TubeSync can detect this and prevent catastrophic damage.”
KBO had support from a number of North East backers. It won £90,000 from NorthStar Equity Investors’ Proof of Concept fund, developed its prototype with help from Business Link and got £20,000 from the North East England Investment Centre. The process was then advanced by a grant of £20,000 from One North East.
In all, Andy estimates the product has taken 18 months and around £200,000 to develop.
He said: “We built and developed it from the bottom up. We tried to use components that were available in the marketplace and we created our own unique algorithm.
“We don’t think there’s a similar product to this on the market and we’re hoping to receive a patent in the next couple of months.”
Right now, KBO is on the hunt for buyers. The team has just returned from the international Musikmesse instrument trade show in Frankfurt, where they saw a live band perform using TubeSync technology for the first time.
He said: “It was being used by a band playing Pinball Wizard by The Who. We’re expecting to see the technology on stage properly some time this year.
“The lead time on the product is about eight weeks so it could well be appearing in the summer.”
British amp manufacturer Hiwatt, whose users include Arctic Monkeys, The Killers and The Kooks, has incorporated TubeSync into its amps and Andy says that others, such as fellow Brits Orange, are keen.
The company is talking to manufacturers about fitting it in amps this year and down the line it may create variants of the product that could be fitted by amp technicians or even end users.

Tags: 100, amp, Bias Engine, current, Frankfurt, hiwatt, Hiwatt at Musikmesse, Hiwatt custom amp, how to, KBO Dynamics, Musikmesse, Musikmesse 2010, orange, Output transformer, tube failures, Tubes, TubeSync, TubeSync Bias Engine, valve, valve failure modes, valve matching, valves Posted in Tube Amplifiers, TubeSync | Comments Off
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