JJ ECC99

R.F. DOUBLE TRIODE
ECC99 is a 9-pin double triode usually used as a driver for directly heated power triodes (i.e. 300B and 2A3), but in some applications can be used as power tube (headphones amps, small power amps...). Excellent sub for a 12BH7.

Specifications

https://www.jj-electronic.com/images/stories/product/preamplifying_tubes/pdf/ecc99.pdf