Vacuum tube type 6Y6GA
||Printed in silver ink around the glass envelope.
overall: 3 3/4 in x 1 11/16 in x 1 11/16 in
This is a beam power tube in a glass envelope with an octal base. This is a spare tube for Top panes-Bus driver arithnetiuc rack, S/N 4.
Gift of the Digital Equipment Corporation