You may want to do a little research.
It seems the 6H6p is the same/equivalent tube as a 6N6p.
From thetubestore dot com;
http://www.lampizator.eu/UPGRADE/upgrade%20noval%20tubes%20to%206H6P.html
It seems the 6H6p is the same/equivalent tube as a 6N6p.
From thetubestore dot com;
The 6N6p tube is a Russian dual triode tube. This tube is often seen as 6N6p, 6N6PI, 6N6pi, 6H6p, 6N6p-i, 6N6n-i ,or 6H6n-i. The Chinese name for the 6H6p tube is 6N6 tube. The 6N6p is a fantastic tube for preamps and driver stages, and is even used as output tubes in the Little Dot MkIII headphone amp. It has been used by the tube DIY underground for many years and is now becoming better known in the mainstream.From the Lampizator website;
First some facts: 6H6(Pi) is written in CYRYLLIC alphabet. That's why sometimes you can find the same tube written in latin which spells 6N6P.And a link;
To my knowledge this tube has been produced only in Soviet Union (the oldest sample I found was from 1974, the newest from 89.)
It is a genuine Soviet design, unlike most of their tubes which they copied from the West all the time. The closest equivalent is the Ecc182, E182CC although the pinout is different, .
We do not want to use the impulse variant 6N6P-i later named 6N30P. We want the good old 6N6P only.
http://www.lampizator.eu/UPGRADE/upgrade%20noval%20tubes%20to%206H6P.html