Posts Tagged ‘valve’
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
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Thursday, June 9th, 2011
Sensational blues 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.”
 “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.
Above : TubeSync fitted to a Mesa Boogie F-50
Tags: 6l6, 6v6, anode, Ashdown, bass, Bias Engine, Boogie, cathode, Custom, F50, Hiwatt custom amp, how to, KBO Dynamics, KT88, Laney, Marshall, Mesa, Mesa Boogie, Mesa Boogie F-50, Mesa Boogie F50, orange, Output transformer, Rockerverb 100 Head, technician, tube failures, TubeSync, TubeSync Bias Engine, UK, valve, valves
Posted in Tube Amplifiers | 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
Wednesday, February 16th, 2011
Due to the growing demand TubeSync has now over 2,000 friends on Facebook!
Click on the link above if you would like to join the TubeSync Revolution
Tags: amp, Ashdown, Bias Engine, biasing, DIVO, EL34, Facebook, Frankfurt, Guitarist Magazine, Hiwatt custom amp, KBO Dynamics, KT88, orange, Orange DIVO, Orange ov4, ov4, Tube Amp Doctor, TubeSync, TubeSync Bias Engine, v4, valve, valves
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Wednesday, January 19th, 2011
Orange Amps Launch TubeSync DIVO at NAMM 2011
Tags: Adrian Emsley, DIVO, Frankfurt, Guitar world, NAMM 2011, new, Orange Amps, Orange ov4, Rockerverb, Rockerverb 100 Head, Rockerverb 100 MKII, tube, TubeSync, valve, whats new at namm
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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
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.
 The 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 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.
Tags: amp, Amp tech, backliners, bias, bias problems, EL34, EL34 Valve, guitar, guitar amp repair, hiwatt, Hiwatt custom amp, KBO Dynamics, London, Marshall, Output transformer, technician, the plasa, Tubes, TubeSync, TubeSync Bias, UK, valve, valve amp repair, valves
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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?
Tags: 100W, 50W, AD 200, amp, Base Head, bias, bias problems, current, Custom, DR103, EL34, fuse, gain, hi, Higain, hiwatt, Hiwatt at Musikmesse, HT, Huiwa, JC900, JCM800, JCM900, KT88, Laney, Marshall, orange, Output transformer, Pacemaker 100, Problem, PV5150, Rockerverb 50 Combo, Thunderverb, Thunderverb 200, tube failures, TubeSync Bias Engine, valve, valve failure modes
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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
Thursday, April 1st, 2010
Famed for their legendary reliability and tone, Hiwatt have gone one step further in the reliability stakes by employing TubeSync® technology in their already bulletproof amplifiers.
Over the last year, Hiwatt and Durham-based KBO Dynamics have developed their own version of a pioneering technology called TubeSync®, which Hiwatt will launch at Frankfurt Musikmesse 2010 in March. The technology has been developed in order to overcome problems associated with conventional tube amplification such as biasing, tube longevity and overall reliability. What the collaboration has achieved is to improve amplifier design without changing the fundamental amplification process yet retaining the classic Hiwatt tone and sound.
Although not an integral part of the amplification process, Tubesync® is connected to the heart of the amp’s circuitry, constantly testing and monitoring; it’s like having an amp technician working full time inside the box every time the amp is powered up. This technology eliminates the need for tube bias current matching, increases tube life by micro-adjusting the bias on each tube, predicts tube failure and can, in the event of a catastrophic tube failure, even run the amp at half power. The result is the eradication of many of the problems hampering conventional tube amplifiers and peace of mind for the musician wise enough to have taken this route.
KBO Dynamics Chief Exec Andy Fallon: “It has been a pleasure working with Hiwatt who have been extremely receptive to change and have embraced the new technology. They have seen the benefits it can bring to them and of course, their customers, and we are looking forward to further exciting collaborations. This technology genuinely has raised the bar concerning reliability and classic tube amps, and what’s more. It’s been developed exclusively in the UK.”
Tags: anode, bias, Bias Engine, bias problems, Frankfurt, gain, guitar, Hiwatt at Musikmesse, Hiwatt custom amp, how to, Musikmesse, Musikmesse 2010, Tube Amp Doctor, tube failures, Tubes, TubeSync, TubeSync Bias Engine, valve, valve matching, valves
Posted in Tube Amplifiers, TubeSync | Comments Off
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