RCA 12AX7's (Plate Options)

RCA 12AX7 Collection Over the years, RCA has offered a variety of different types of 12AX7's (black plates, long grey plates, short grey plates, etc.) and each 12AX7 type has their own strengths, weaknesses, and tonal qualities. Here are a few rules to remember: Shorter plates are less noisy (on average) Longer plates are tonally more complex i.e. more "depth/fullness" (on average) Reach out to a Fuzz expert if you would like more help determining what tubes are best for you! We can be reached at Support@FuzzAudio.com or by clicking the chat icon in the lower right hand corner of your screen.  RCA 12AX7 Black Plate The RCA black plate 12AX7 is 1 of 2 long plate 12AX7 variations manufactured by RCA and is the oldest RCA 12AX7 we offer. Manufactured roughly between 1950-1959, these tubes would be found stock in classic 1950's Fender Tweed Amplifiers, along with many amplifiers made in the 50's. They are THE best option for restoring American 1950's amps back to former glory or en