5755 Raytheon 12AX7 1% matched & balanced triodes in pairs with mini adapters

For sale is a macthed pair Raytheon 5755 closely matched at 1% on gain and balanced triodes. Close electrically to an 12AX7 but different pin out. Price per 2 (one pair). NOS made in USA. Because of there special rugged build this are very quiet and low on microphonics.

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