Philips ECC82 Miniwatt cellophane sealed,ECC82(12AU7) is 9 pins dual triode,very popular in tube audio amplifier and preamplifier.
Siemens E82CC,same family as ECC82(12AU7) tube but special long life version (up to 10 000 hours) with gold pins.
Unison Research S9 using 4xECC82 in driver and preamp stage,power valves was SV572-10
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