Get the best price and selection of Roadie Tuner Accessories at Musicians Friend. Many Roadie Tuner Accessories are eligible for free shipping. To view the festivities tubefree without relying on a sketchy illegal stream, youll need to sign up for CBS All Access, or download the CBS Full Episodes and. Review Orange DIVO VT1. Home Staff Contacts Hi. Fi Playground Listening tests DIY Tweakings Music Books Essential gear for tube o philes Orange. DIVO VT1. Italian version. Product DIVO VT1. Manufacturer Orange Amplification UKApprox. GBP, 4. 99 USD YMMVAvailability official distributors, online stores, Ebay stores. Reviewer Mark Wheeler TNT UKReviewed November, 2. Introduction. Orange, maker of those distinctive valve heads and speaker cabs, have introduced a clever valve tube field tester that can be operated by anyone capable of safely unplugging a valve and plugging it into the test box. Like their orange tolex covered guitar amps, the DIVO VT1. It is designed to be a plugnplay device, performing a full test sequence in a claimed 2 minutes. I do not know which valve type they were testing to achieve that speed. Watch Roadie Tube Free' title='Watch Roadie Tube Free' />In approximately two minutes, the VT1. Heater filament test Short circuit. Heater filament test Open circuit. Heater filament test Tolerance check. Heater cathode insulation Leakage. Heater cathode insulation Short Circuit. Tests for heater current abnormalities. Amplification factor. Voltage gain. Power gain. Screen grid test. Mutual conductance test. Dual test for double triodes. Emission. Inter electrode leakage. Inter electrode short circuit. Flash over arc detection, high voltage breakdownGas ionisation test sometimes called cathode poisoning. Before starting the test, the operator must connect the power supply to the unit the high current low voltage feed will provoke a slight arc on the coaxial socket so. Use the OK switch to activate the unit and the leftright toggles to select the valve type. Press OK and watch it performing the. Watch Online Watch Ocean Heaven Full Movie Online Film. The Orange. DIVO VT1. Tube. Sync valve monitoring technology thats found in its DIVO OV4 amp management tool. If it works, at this price, every studio and stage tech should have one, if it really does field test all the valve types encountered in everything from and old Vox AC3. Orange AD3. 0HTC. The old scribes writing for Roadie Monthly already what use is this to audiophiles suggest plebs, stage left. Your old scribe Recommended the. Tube Imp valve tester with two big caveats. The Tube IMP has no octal valve socket. The Tube IMP only tests popular B9a based pre amp double triodes. The Orange. DIVO VT1. It has an Octal socket and algorithms for. B9a sockets for miniature power valves EL8. It lacks the base for. B power triode even though it includes a test sequence for the modern ECC9. B driver and as an. It also despite your old scribes attempts to find a workaround does not test the octal equivalents of B9a valves that can be tested by the Orange. DIVO VT1. 00. 0 valve tester. This means it simply shows them as fail without doing any harm as the tester sequence does not recognise the type when the test sequence is initiated. Many audiophiles prefer the. Octal bases than B9a types, despite their reputed higher microphony. The very linear and hence very popular 6. SN7. cannot be tested, nor can the lush 6. SL7 be tested. Orange claim, Commercial valve testers have been available, almost since valves were invented, incorporating many excellent techniques and designs over the years. However the vast majority have a number of common features, which we considered to be a barrier to the modern valve user namely. They require a certain level of user interaction in that parameters have to be set for individual valves being tested They require a certain depth of knowledge about valve theory, which some users may not have The results obtained on meters or digital readouts require a certain level of user interpretation They are often quite large and bulkyIn a lot of cases previously available valve testers are not very portable and require correct mains voltage. The. TNT audio. com, also overcomes those criticisms, but by virtue of being dedicated only to miniature double triodes is limited in application. Orange continue, When developing the VT1. It requires no user interaction other than inserting the valve to be tested into the correct socket, selecting the type from a list using two updown buttons using an LED bar display. START button. The test then proceeds without any further input and an elapsed time is displayed on the bar graph display during the test, when one of three LEDs. PASS, WORN or FAIL condition. In addition, the LED bar graph display indicates a matching number which is based on a summation of the many results obtained during the test and has been specifically designed. For example, power valves are graded with their emission and control grid performance as primary factors, whereas pre amp valves are graded with different parameters to reflect. If the valve is faulty or worn, then this will be indicated at the end of the test. The simplicity of operation belies what is going on inside the box, where a sophisticated microprocessor controlled testing system is in operation. In addition all voltages required by the tester are internally derived. The test algorithms used have been developed using data from tests on hundreds of new, used and faulty valves. In addition to the standard range of tests, which include internal short circuits and open circuit heater, the VT1. Pentodes Beam Tetrodes and heater current values for each type of valve selected. Valves are extremely complex devices and attempts to categorize them using just one or two measured parameters are often unsuccessful in real applications. The measurements made by the VT1. In a similar way, the matching number indicated by the LEDs at the end of the test. What the Orange. DIVO VT1. The biggest criticism for audiophiles or users of some vintage North American instrument amplifiers, PA amplifiers or theatre amplifiers, is a whole class of valves is physically excluded. VT1. 00. 0 does have the electrical capability to test them. Of course, these are the octal base small signal valve. Arguably the most linear pre amp valve is the 6. SN7 double triode. Eastern designated, virtually identical 6. N8. S that do appear as OEM in instrument amps which are. ECC8. 2 or even closer 6. CG7 as used by Doug Dunlop in some examples of his. Concordant Excelsior. The ultra lush 6. SL7 belongs in guitar amps for its rich tone but somehow has never made it. So just like the. Tube Imp valve tester. TNT audio, the Orange. DIVO VT1. 00. 0 is not quite the answer to all the tube techs prayers. The b. 9a ECC8. 8 and its pretentious cousins, the E8.