6N3P

[Image:6N3P.jpg|thumb|right|150px|6N3P vacuum tubes USSR]The 6N3P is a Russian-made direct equivalent of the 2C51 medium gain dual triode vacuum tube. It may be used as an amplifier, mixer, oscillator or multivibrator over a frequency range AF through VHF. The Russian tube is slightly larger in size than the American tube.

Basic data

Uf = 6.3 V, If = 350 mA, μ = 36, Ia = 7.7 mA, S = 4.9 mA/V, Pa = 1.5 W

History of use

6N3P was widely used for FM band radio input unit stages. Currently it has found use in DIY preamps. A ruggedized/industrial version of the tube is designated 6N3P-EV.

Chinese 6N3

eBay has proliferated with pre-amps apparently from Hong Kong that are largely populated with the 6N3, which is said to be the Chinese version of the 6N3P. The 6N3Ps are newly made.