These tubes are extremely well made and are very consistent and balanced from tube to tube. At Tonal Tubes we test and match preamp tubes using an instrument that allows us to test tubes for gain, transconductance, and noise, at real world voltages that would be seen in a guitar amp or hifi amp. We test every single tube that we receive to make sure it matches our standards. All tubes are also checked for shorts and leakage on a separate tube tester to ensure that all tubes will work flawlessly in your equipment.
For 6H30Pi tubes we match with a maximum difference of 10% for gain. For each side of the tube. An example would be a 6H30Pi tube that test 14.3/15.5 for gain. This tube would pass our tests. If a tube tests outside of our regulations then we simply do not sell those tubes.Why You Should Do Business With Us. Every single tube is checked for shorts and leakage on a calibrated Eico 667 tube tester. Comes with original packaging straight from the factory, as shown in the picture. We are musicians who crave awesome tones.
We all know that swapping out tubes can be one of the more effective ways of improving your tone. At Tonal Tubes, we help you achieve that next level tone. The item "New 8x Electro Harmonix Gold 6H30Pi Matched Octet / Eight Tubes EH Free Ship" is in sale since Tuesday, March 22, 2016. This item is in the category "Consumer Electronics\Radio Communication\Parts & Accessories\Tubes". The seller is "tonaltubescom" and is located in Durham, North Carolina.
This item can be shipped worldwide.