I will be getting the Lampizator Amber 3 DAC which uses "a ECC99 super tube as input amplifier, in a zero feedback, single ended triode mode, as well as ECC82 as low impedance output buffer." I don't know the exact tubes Lampizator supplies with this DAC but there is always the temptation to find something better - either new or NOS but online I find the following listed equivalencies: ECC99 = 6N6P ~ E182CC Russian Double Triode Tube, 6N6P / 6Н6П, 6N30P-DR. Do these codes seem correct?