All tubes are tested for Gm, shorts, leaks, gas, and noise on one of our vintage, calibrated, or state of the art digital tube testers. To view our inventory of thousands of tubes both NOS & New Production. New Gain Matched Octet (8 pcs) Electro-Harmonix 7025 (12AX7) Vacuum Tubes. Electro-Harmonix has released a low noise, low microphonic version of the 12AX7 that meets all specifications required for the tube to be designated 7025.The original 7025 tube was a 12AX7 that was tested and selected for the lowest noise and microphonics for use in the critical first preamp stages of amplifiers where noise and microphonics could be an issue. In order to ensure that the 7025 specification is consistently met, Electro-Harmonix has redesigned the structure of the 12AX7 and has implemented construction techniques to ensure the absolute lowest noise and microphonics possible. In all samples tested, noise and microphonics could not be detected. The Electro-Harmonix 7025EH has a mid-range that gives clarity and definition to the sound, and a smooth top end for warmth and balance. With these characteristics, along with the exceptionally low noise and low microphonics, the Electro-Harmonix 7025EH will work equally well in vintage and modern high-gain guitar amplifiers, as well as sensitive phono preamps.
Tested and/or matched at full operating voltage on a Maxi-Matcher Preamp tube tester for both Gain and General Mutual Transconductance (Gm). We always TRY to match by 5% when we can (90% of them time) but our cut-off matching parameter is +/- 15%. We have a retail location located in Easthampton MA.
Other options available only by request. Typically 3-6 weeks but up to. 6-14 Days - Includes Tracking. All of our products are guaranteed unless otherwise stated.
All items all guaranteed to be as described and free of any electrical or operational faults such as shorts, low test, microphonics, noise etc. For example-a tube installed in the wrong amplifier.
New Production tubes are guaranteed for 90 days. Come visit the only retail tube store in the USA! VIVA TUBES is your source for vintage vacuum tubes.
Located in an appropriately rustic mill building in Easthampton MA. We share our building with a Recording Studio, Brewery, Practice Spaces and many other small businesses. We carry everything from vintage audio tubes and new productions to HAM tubes. We also have a variety of vintage electronic parts as well as audio equipment and more!
We have a vast inventory of thousands and thousands of tubes. What started as a hobby several years ago to fund my obsession with tube audio, VIVA TUBES has quickly grown into a full time. We pride ourselves on our excellent customer service and great attention to testing and product detail. Shop with us and find out why the majority of our customers are repeat customers. APPOINTMENT TO VIEW LOCALLY - PLEASE CONTACT.
The item "New Gain Matched Octet Electro-Harmonix 7025 (low noise 12AX7) Vacuum Tubes" is in sale since Friday, March 26, 2021. This item is in the category "Consumer Electronics\Vintage Electronics\Vintage Audio & Video\Vintage Parts & Accessories\Vintage Tubes & Tube Sockets". The seller is "vivatubescom" and is located in Easthampton, Massachusetts. This item can be shipped worldwide.