Electro-Harmonix 7025

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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 wa s 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. Specifications http://shop.ehx.com/catalog/tubes-specs/7025EH.pdf Show more