Bell System Key System Service Manual Volume II November 1975

1943 New England Bell System Safety Code Plant Dept Manual Standards Binder

Bell & Howell Schools 5:WSIS Oscilloscope Instructional Service Manual

HP 382A Variable Attenuator Operating & Service Manual (July 1980)

Original HP 427A Voltmeter operating and service manual July 1976

Rhode & Schwarz Sweep Generator Synthesizer SWP Service Manual Volume III

HP Printer Mechanism Operating & Service Manual ~ July 1966

HP 435A Power Meter Operating & Service Manual July 1974 00435-90006