Title
Vacuum tube type 12HL7Catalog Number
102730558Type
Physical objectDescription
The record contains two type 12HL7 vacuum tubes. Each is a 9 pin miniature glass pentode tube. There is visible seem in the glass envelope.Manufacturer
International Service MasterPlace Manufactured
U.S.Identifying Numbers
| Model number | 12HL7 | Printed at the top of the tube |
Dimensions
overall: 2 5/8 in x 3/4 in x 3/4 inCategory
Component/vacuum tube