Vacuum tube type 4EH7
Radio Corporation of America (RCA)
U.S.; Great Britain
||Printed in grey/white at top of tube
||Printed in grey at middle of tube
||Printed in white at top of tube
overall: 2 1/4 in x 3/4 in
These are two vacuum tubes, type 4EH7, manufactured by Radio Corporation of America (RCA). Tubes have 7 connector pins.