MOV E1841 hexode developmental valve

This valve measures 68x36mm overall and has an 8 pin base.

By examination this valve appears to be a hexode, having four sets of grid supports visible, each of which is connected to the base. The connections are 1=H, 2=A, 3=G2, 4=G3, 5=G4, 6=G1, 7=K, 8=H.