The medium gain JJ 12AY7, also known as the 6072A, often appears in vintage amps from Fender and so on. A great valve for improved headroom.
JJ Electronic put their 12AY7 into production in June 2015. It’s pin compatible with the ECC83 (12AX7), but lower gain. The first 12AY7s appeared in early Fender Tweeds in the first preamp stage (i.e. in the V1 valve position). Many harmonica players still favour this valve in the V1 position today.
We test your 12AY7 on a custom tester configured per the typical V1 position in an amp. We check the anode currents are in specification and listen for noise and microphonics.
Click here for the JJ Electronic Datasheet
Made in Slovakia.
Includes our class-leading 180 day warranty.