Title
Vacuum tube type 5581Catalog Number
102691727Type
Physical objectDescription
This Radiotron tube has an octal base, but it is only populated with five pins. There are two unreadable blue ink marks on the bottom of the base.Manufacturer
Radio Corporation of America (RCA)Place Manufactured
U.S.Identifying Numbers
Other number | 5581 | Printed on base |
Other number | 65-22 | Printed on base |