[ssaunders]

Dear wise ones....

A couple of queries regarding valve construction practice:

1) What is the significance of the centre spigot on a B9A socket - I've noticed that most are connected to chassis and wonder why? Are there circumstances where one absolutely should or should not utilise the spigot?

2) My project uses an EF80 which I notice has a connection to an inner screen - should this be bought to chassis, left floating or what? (And why?)

Thanks

Simon