7025EH image
EH 7025 stock image

EH 7025 Preamp Valve

£25.00 – £27.80

Electro-Harmonix has released a low noise, low microphonic version of the 12AX7, the EH 7025. We in house test for noise and microphonics.
Electro-Harmonix has redesigned the structure of the 12AX7 and implemented special construction techniques to ensure the absolute lowest noise and microphonics. Fully tested in-house here at VTGA for maximum quality assurance.

Made in Russia.

180 day warranty.

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The EH 7025 Preamp Valve, reintroduced in 2020, includes noise and microphonics testing in a typical V1 position application. With this tube, Electro-Harmonix has released a low noise, low microphonic version of the 12AX7 that meets all specifications required the 7025 designation.

The original 7025 tube was a 12AX7 selected for the lowest possible noise and microphonics, making it ideal for the critical first preamp stages of amplifiers where noise and microphonics could be an issue. In order to meet the 7025 specification, Electro-Harmonix has redesigned the structure of the 12AX7 and implemented special construction techniques to ensure the absolute lowest noise and microphonics. In all samples tested, noise and microphonics could not be detected.

The Electro-Harmonix EH 7025 has a mid-range that gives clarity and definition, and a smooth top end for warmth and balance. With these characteristics, along with the exceptionally low noise and low microphonics, the Electro-Harmonix 7025 will work equally well in vintage and modern high-gain guitar amplifiers, as well as sensitive phono preamps..

Select either Premium tested or Factory Test only for phase splitter applications. We verify noise and microphonics on our custom tester for our Premium grade

Click here for datasheet

Includes a 180 day from receipt warranty (excluding user-caused mechanical damage) for peace of mind.

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Preamp Valve Options

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★ Valve Testing

All valves tested in-house at VTGA unless listed as “Factory Tested Only.”

We test our valves to the highest standards with 40+ years of industry expertise using vintage, state-of-the-art, and custom-built equipment. Valve Tube Guitar Amps guarantees the best possible reliability, quality, and tone with every valve we sell. You can’t buy a better valve. Each unit comes backed by our industry-leading 180 day warranty against manufacturers' defects.

★ Shipping Info

Shipments within the UK come by Royal Mail with 24 hour tracking (no deliveries on Sundays). We also offer international shipping. All orders securely packaged.

★ Safety

Please make sure your amp's bias is set correctly. If not, you could hamper your tone and even limit the life of the output valves. Also note that valve amps can retain high voltages even after being switched off. If you are not sure of fitting your valves, please seek the services of qualified personnel.

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