Tube manual with tabular data and basing diagrams. Solid average condition. Tube manual with tabular data and basing diagrams. A bit rough, but a good user's copy. High quality ring bound copy.
Title says it all.
High quality ring bound copy. Contains general test setups plus data for obsolete and foreign types. High quality ring bound copy. 15 pages of how to use the tester, including a parts list and setups for testing ballast tubes. High quality ring bound copy.