The US version of 6E5 has 6 pins, base wiring 6R. However I did find a data sheet showing different versions with more pins.
http://frank.nostalgiaair.org/short/054/5/501.pdf
Norm
: Does anyone know if the 6E5GT is a direct replacement for a 6X6 eye tube??
: Does anyone know if the 6E5GT is a direct replacement for a 6X6 eye tube??