Vacuum tube type 6145
||Printed in silver ink on top of the glass envelope.
overall: 2 7/8 in x 1 1/8 in x 1 1/8 in
This is a power pentode vacuum tube with a loctal base. "ISIRIM V1-1" is handwritten on the tube. The "DE" is obscured, but ends in "583."
Gift of the Digital Equipment Corporation