Vacuum tube type HY114B
||Printed on the side of the black base in silver. The number is also printed on the side of the glass tube.
overall: 2 1/2 in x 1 1/4 in x 1 1/4 in
A HYTRON tube, which is glass with two metal nubs at the top. The base is black iwth the type of tube printed on it in silver. The tube has a five pin connector at the bottom.