Best Tube Tester For Guitar Amps (2024 Update)

The whirlwind qbox audio line tester/cable tester/test tone generator is the all-in-one audio line tester ideal for applications such as live sound, maintenance, installation work – anywhere audio runs down a cable. the qbox includes a microphone, a speaker, a test tone generator, outputs for standard headphones, a 1/4" jack for line-in or a 2k ohm (telephone) earpiece out. a handy clip attaches the qbox to your belt or equipment rack. simply generate into or listen to audio at any point in your system from the mics to the power amps to quickly confirm which sections are working and which ones aren't. the qbox can quick-check dynamic mics and cables without firing up the entire system. use the built in mic or tone generator at three different levels for activating a signal path or identifying a specific cable in a pile of cable ends. powered by a single standard 9v alkaline battery and housed in rugged abs, the qbox is light yet able to withstand the wear and tear of fieldwork. for an instant hands-free intercom, just plug in headphones and hook up one qbox on each end of a line and use the built-in microphone. use it to monitor a standard 3-wire intercom feed – leds confirm the presence of intercom or phantom power. use it as a squawk box to the stage from the main audio console during set-up. works in a pinch as a handy, portable, powered monitor too. the source section of the qbox lets you send a tone or the signal from the built-in condenser mic at mic or line levels. the speaker volume control lets you confirm incoming signals at mic or line level. a handy monitor switch allows the user to listen to a balanced signal or to two separate unbalanced signals on pin 2 or 3 (referenced to pin 1), such as a two-channel intercom. a split switch disconnects the two xlrs from each other so tone or internal mic can be sent out of one xlr while you listen to what's coming back on the other.

Make sure every cable in your arsenal is in good working order with the invaluable behringer cable tester ct100. this incredibly portable audio solution is a must-have for sound engineers and musicians alike. microprocessor-controlled, 6-in-1 cable tester test with the best the ct100 accepts every type of cable you might use in a recording or live performance situation: xlr, mono and trs phone (1/4 , 1/8 , tt), rca and even midi. choose from three modes: cable test mode, installed cable tester mode and tone mode. the ct100 can check for continuity, intermittency, phantom power presence and grounded shields. because this handy tool runs on two aa batteries, you can carry it in your pocket and be ready to troubleshoot at a moment s notice. small solution the cable tester ct100 is the smart, portable and unbelievably affordable way to ensure your next show or recording session runs smoothly. another important addition to your audio toolbox. what s in the box behringer ct100 cable tester, user s manual

Perfect for safely troubleshooting and testing audio systems. offers an output range of 0-8 volts at a variable 10 khz to 13hz tone for setting system levels, checking speaker x-over points, verifying connections and general troubleshooting. the mtibr68 also has a 9v speaker popper for visually testing speaker connection polarity. connections can be made via supplied rca or alligator clips. it features an auto shutoff for extended battery life; small size for handheld use and knurled control knobs for easy tone and level adjustments.

Handheld component checker measures inductance, capacitance, resistance, transistors, diodes and microwave diodes the amprobe lcr55a is the ultimate component checker. this handheld tester measures inductance, capacitance, resistance, transistors, diodes and microwave diodes. the lcr55a performs so many functions across such a wide range of applications that it's an indispensable tool for any technicians' toolkit. amprobe lcr55a testers provide quick and accurate readings over wide ranges. the unit includes plug-in test slots and test leads with threaded alligator clips for convenience. test results and data are easy to read on the oversized digital display. the tester features a data hold and max hold functions, as well as a "zero adjust" pot for ohms. the tester also has a low battery indicator and an auto-off power function to conserve battery life.

Our top of the line true rms stick meter, the hs36 includes the ranges you use everyday for hvac/r field service plus includes a bright blue backlight and true rms. like the rest of the hs30 series, the hs36 comes equipped with a magnetic hanger, along with detachable silicone test leads and alligator clip probe tips for remote and easy one-handed testing, as well as the full set of built-in safety features. this auto-ranging stick meter also includes a bar graph on the lcd for an analog feel. technicians who prefer our expandable stick meters tell us this is the best digital multimeter for hvac/r field service.

The et600 is a multi-function megohmmeter capable of producing 125v, 250v, 500v, and 1000v test voltages for insulation resistance measurements up to 4000mω. also tests ac/dc voltages up to 1000v with automatic ranging true rms technology. convenient lock function and built-in stand for hands free operation. dual-function backlit display monitors process.

Behringer's ct200 cable tester is an absolute must-have in your studio or live-sound toolbox. this super-affordable 8-in-1 cable tester lets you diagnose common problems in a wide range of cable types. on the audio side the ct200 lets you check for faults and shorts in cables with xlr speakon 1/4" and 1/8" trs and rca connectors. gearnuts techs also appreciate the way it lets you quickly sort out issues with rj45 ethernet cables midi cables and usb cables.

With color touch lcd & high speed dsp technology, the compact and rugged vitrek v70 ac hipot tester sets the standard for price/performance ratio. the v70 ac hipot tester is made in the usa to meet tough ul, tuv and iec requirements. the vitrek v70 ac tester provides unbeatable speed, accuracy, safety and reliability.

The tracetone 62-140 tone and probe kit is our entry level tone generator and amplifier probe solution for installers who occasionally need to find low-voltage or other copper cables in an existing installation. the tone generator has an rj-11/12 and interface and an alligator clip cable assembly accessory (included) to send tone on any de-energized copper cables including electrical cables, speaker wires, alarm cables, etc. two different user selectable tone patterns are emitted from the generator. generator drives all conductors of port under test for a stronger signal and easier cable identification. tone generator can be used for testing coax, twisted pair cables and other copper cables. generator automatically turns off when returned to the base of the probe. the amplifier probe picks up analog generated signals from the tone generator. it has an adjustable volume control knob. the base of the probe body stores the tone generator when not in use.

The jonard pt-300 pocket continuity tester and toner, designed to handle right angle connections, is a drop cable tester that is accurate up to 5,000 ft. it is able to identify cables in a mdu and detect short circuits. continuity tester tone identifies line carrying signals and an led light indicates splitters and dc shorts. the toner can also be connected without emitting a tone, a discretionary option. it features a convenient on/off switch to extend battery life. the pt-300 includes a right angle male push-on connector for working in tight spaces and a female push-on connector.

Our top of the line true rms stick meter, the hs36 includes the ranges you use everyday for hvac/r field service plus includes a bright blue backlight and true rms. like the rest of the hs30 series, the hs36 comes equipped with a magnetic hanger, along with detachable silicone test leads and alligator clip probe tips for remote and easy one-handed testing, as well as the full set of built-in safety features. this auto-ranging stick meter also includes a bar graph on the lcd for an analog feel. technicians who prefer our expandable stick meters tell us this is the best digital multimeter for hvac/r field service.

Astroai 4000 counts trms clamp meter the astroai true rms 4000 counts digital clamp meter is designed to be safely and accurately used by professionals and weekend diyers. it is suitable for commercial and household electrical problems. advanced features have been provided including ac/dc voltage, ac/dc current, frequency, duty cycle, resistance, capacitance measurement and ncv detection, flashlight, diode, live wire test and audible continuity testing.

Tone generator and speaker polarity tester perfect for safely troubleshooting and testing audio systems output range of 0-8 volts at a variable 13 to 10,000hz tone 9v speaker popper for visually testing speaker connection polarity includes rca and alligator clips for connection. – safely troubleshooting and testing audio systems. – output range of 0-8-volts at a variable 13 to 10,000hz tone. – tone for setting system levels, checking speaker x-over points, verifying connections.9-volt speaker popper for visually testing speaker connection polarity. – connections can be made via supplied rca or alligator clips

Perfect for safely troubleshooting and testing audio systems. offers an output range of 0-8 volts at a variable 10 khz to 13 hz tone for setting system levels, checking speaker x-over points, verifying connections and general trouble shooting. the tl-ptg also has a 9 v speaker popper for visually testing speaker connection polarity. connections can be made via supplied rca or alligator clips. it features an auto shutoff for extended battery life small size for hand held use and knurled control knobs for easy tone and level adjustments.

Pte aim at delivering the best value products at an affordable tag for both amateurs and professionals handyman and handywoman. with this in mind our brand focus on bringing tools which make good on their promises and deliver good performances without burning a hole in your pocket. tracing wire is as easy as 123 broken circuits have nowhere to hide thanks to pte wire tracer you can trace wires in a range of applications including buried wires single strand broken wires etc. and verify the continuity of your installation. kit includes pte wire tracer probe and transmitter with rj11 phone connector and a pair of alligator clips. note: two 9v batteries required. batteries are not included. find wires quickly and accurately – detect and trace wires from source to termination. (use only on alligator clip in tone mode). flexible usage – thanks to the cont mode you can check for short and open circuits and the rj11 connector lets you test telephone adjustable – adjustable sensitivity for differentiating wires in close proximity and avoid false detection no risk – one-year coverage and friendly service from seller truetosource! signal detector non-contact probe audibly identifies selected wire or cable. rotate the volume/sensitivity control on the probe for the appropriate level and sensitivity to identify and trace the wire. signal sender switch to tone mode and use only one alligator clip to trace wire. switch to continuity mode and use both alligator clips to check for continuity and short circuit. alligator clips in tone mode connect the red clip to the wire you wish to trace and the black clip to ground if possible. in continuity mode connect each clip to each end of the circuit cable. if the wire is short circuited or broken the red led with light. you can then use tone mode to trace the wire all the way to the break location. rj-11 plug use the rj-11 plug to identify ring and tip telephone line and test the line condition (clear busy ringing).

V8 tester can measures the cathode current of the power tube for bias reading (at low voltage side of the tubes ) v8 suitable for el34,kt88,6l6,6v6,5881,6550,kt66,kt100,kt120,7027 etc. v8 can get the reading direct from the current meter, it does not need any convert from mv to ma. v8 tester led amp meter ammeter current panel,better performance than lcd ceramic socket and gold pins for long life,tough gold pins with a thick gold plating 01:v8 tester can measures the cathode current of the power tube for bias reading (at low voltage side of the tubes ) 02:v8 suitable for el34,kt88,6l6,6v6,5881,6550,kt66,kt100,kt120,7027 etc. 03:v8 can get the reading direct from the current meter. it does not need any convert from mv to ma. 04:tube socket cable lengh: 55cm 05: led amp meter ammeter current panel,better performance than lcd. 06: copper with excellent conductivity; ceramic socket and gold pins 07: 3.5mm male plug copper used for excellent conductivity. 08:outstanding soldering taken in every adapter. 09:ceramic socket and gold pins for long life,tough gold pins with a thick gold plating. what's in package? 1pcs v8 tester body 4pcs bias current probes 1pcs ac/dc adapter ( 100v~240v ) 1pcs usb connecting line how to use it? 01:turn off your amplifier.connect the product. 02:remove the power tubes and insert the power output tubes into the bias probe sockets. 03:then insert bias meter probes into the tube sockets of the amplifier. 04:turn on your power amp and let the tubes get warm about 5 minutes. 05:read the bias measurement. 06:press down switch from a to b to c to d.get four reading 07:if the both reading is same.that's perfect. if four reading is different. should be no more than 2 or 3 milliamps difference for a good balance between the tubes.

The easy-to-use tone generator traces wire when used with the included probe. alligator clips are provided for unterminated wires and an rj45 to rj45 cable to tone or test data cables. the responsive probe is a tone tracer with a durable, non-metallic, conductive tip, a speaker with audible output and headphone jacks for use in noisy environments (headphones not included). the worklight on the probe illuminates dark spaces. the toner and probe together perform pin to pin wire map test.

This vht tube tester 2 includes two standard 8-pin octal-base adapters with dual banana plugs. adapters accept all popular octal-base output tube types (6v6, 6l6, el34, kt66, kt77, kt88, 6550, etc.). readouts come via two high-quality 3" diameter metal and glass analog milliamp meters (100m a max). and it includes additional test-pin jacks for external digital multimeter connection. requires no external power.

Wire tracer kit identifies wire pairs, check continuity & test telephone line polarity. transmitter has output cables terminated in modular rj11 phone connector. the non-contact amplifier probe audibly identifies the selected wire or cable so that you can easily trace from source to termination. adjustable sensitivity control improves wire identification and eliminates false detection. comes complete with wire tracer probe and transmitter with rj11 phone connector, a pair of alligator clips and two 9v batteries. identify wire pairs, check continuity & test telephone line polarity. transmitter with output cables terminated in modular rj11 phone connector. adjustable sensitivity control improves wire identification and eliminates false detection. easily trace wires from source to termination.

The southwire 58746640 is a multipurpose self-contained tone & probe kit. the southwire t200k is a self-contained kit for tracing a variety of cable types. includes belt-mount case with five adapter cables, separate toner and probe. probe features an led flashlight for cable tracing in low-light areas.