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The 12AX7 Sampler Set allows you to try the most popular choices today and see for your self what the differences are. Preamp tubes can be easily swapped in and out of your amp without the need for biasing. We reserve the right to substitute any of these tubes with one of equal value based on availability.
12AX7-S-JJ: JJ Brand. Our most popular 12AX7
ECC803-S-JJ: JJ Brand. Long Plate 12AX7. This version has higher gain than standard 12AX7s
12AX7 Voskhod Sunrise: Large bottle tube with full rich tone
12AX7-PS-TAD: Tube Amp Doctor Brand. Premium Selected for the highest quality possible
12AX7-C-GT: Groove Tubes Brand. Works well in Marshalls, Fenders and other guitar amps.
12AX7A-C5 Ruby: Ruby Brand. Sorted and selected for high quality
12AX7-EH: Electro-Harmonix Brand. Popular tubes used in many current production amps
12AX7WA Sovtek: Sovtek Brand. Popular tubes used in many current production amps
12AX7B-China: High-grade Chinese tube. Sorted for quality
12AX7 Tung Sol: High gain, ultralow microphonics and superb linearity.