ECC1806BZ7 SYL
ECC186 SQ
ECC189
ECC2000
ECC803Sminiature dual-triode high-gain (typical amplification factor 100), low-plate-current triode best suited for low-level audio voltage amplification. In this role it is widely used for the preamplifier (input and mid-level) stages of audio amplifiers.
ECC8112AT7 RCAHigh-mu twin triode
ECC816201High-mu twin triode
ECC81 POPEHigh-mu twin triode
ECC81 RCA12AT7High-mu twin triode
ECC8212AU7miniature medium-mu twin triode. This tube finds use as a phase-inverter/splitter in push-pull amplifier circuits in ac/dc radio equipment and in many diversified applications such as multivibrators or oscillators in industrial control devices. The tube is quite pokey and sections can even be connected in parallel to create a power amp with enough current to drive a pair of headphones or even a guitar speaker. A centre tapped heater permits operation of the tube from a 6.3V or a 12.6V heater supply. The tube requires a noval nine-contact socket and may be mounted in any position.
ECC82 jj12AU7miniature medium-mu twin triode. This tube finds use as a phase-inverter/splitter in push-pull amplifier circuits in ac/dc radio equipment and in many diversified applications such as multivibrators or oscillators in industrial control devices. The tube is quite pokey and sections can even be connected in parallel to create a power amp with enough current to drive a pair of headphones or even a guitar speaker. A centre tapped heater permits operation of the tube from a 6.3V or a 12.6V heater supply. The tube requires a noval nine-contact socket and may be mounted in any position.
ECC82 sovtek12AU7miniature medium-mu twin triode. This tube finds use as a phase-inverter/splitter in push-pull amplifier circuits in ac/dc radio equipment and in many diversified applications such as multivibrators or oscillators in industrial control devices. The tube is quite pokey and sections can even be connected in parallel to create a power amp with enough current to drive a pair of headphones or even a guitar speaker. A centre tapped heater permits operation of the tube from a 6.3V or a 12.6V heater supply. The tube requires a noval nine-contact socket and may be mounted in any position.
ECC8312AX7miniature dual-triode high-gain (typical amplification factor 100), low-plate-current triode best suited for low-level audio voltage amplification. In this role it is widely used for the preamplifier (input and mid-level) stages of audio amplifiers.
ECC846CW7Double Triode – Noval, 9 pin miniature (USA pico-9) B9A

ECC856AQ8
ECC886922Dual Audio and R.F. Triode (often used in television broadcast equipment, test gear, oscilloscopes and audiophile gear) similar to 6ES8
ECC88 PHDual Audio and R.F. Triode (often used in television broadcast equipment, test gear, oscilloscopes and audiophile gear) similar to 6ES8
ECC91