"Gives dimensions and tolerances for electronic tube and valve bases, holders and caps, together with the relevant gauges and gauging procedure, to ensure interchangeability. Also includes recommended practice for the preparation of drawings of electronic tubes and valves. This is a loose-leaf publication and supplements, containing new or revised sheets, are issued from time to time."
Number of pages: 224
Date of approval: 2017-01-26
International relationships: HD 146 S4:1988 IDTIEC 60067:1966 IDT