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 a 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.
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