Cold weather means Tube Amp season! Don't forget to retube your amp!


12BH7 Tube

12BH7/12BH7A vacuum tube is a medium mu dual triode originally designed as a driver in TV sets. 12BH7 Tube is capable of driving good amounts of current with low distortion. This makes it ideal as driver for power tubes in modern audio amplifiers.

Current Production 12BH7

Current production 12BH7A from Electro-Harmonix is a direct replacement for any 12BH7 and 12BH7A tubes. JJ ECC99 is a compatible driver tube. it can be used as a substitute for 12BH7 in many cases, but please refer to amp manufacturer's recommendation if you aren't sure.