This is a Chinese military version of the classic 6V6GT beam tetrode and came as part of a matched pair with the 6P6P amplifier kit.

The dark internal coating obscures the internal structure.

The wide glass tube envelope is 27 mm in diameter, and excluding the IO base pins is 67 mm tall.

References: Data-sheet, ¹⁰⁴⁰ & ¹⁰⁴³. Type 6P6P was first introduced in 1937. See also 1937 adverts.

Pin Connections

IO

1

2

3

4

5

6

7

8

m

h

a

g2

g1

nc

h

k