Btw, anyone planning to tinker with valves/ tubes....I thoroughly encourage it...but you need to learn to safely discharge caps before you open valve equipment.

Btw, anyone planning to tinker with valves/ tubes....I thoroughly encourage it...but you need to learn to safely discharge caps before you open valve equipment. Caps can hold 'instant death' voltages long after they are unplugged. A search on the interwebs will show you the way