Voltmeter, Model 400A
Inventory NumberWJ0561
ClassificationVoltmeter
Subject
Maker
Hewlett-Packard Company
1939-present
Place of OriginPalo Alto, California, United States
Dimensions21 x 18.9 x 25.9 cm (8 1/4 x 7 7/16 x 10 3/16 in.)
Signedstamped on front: MODEL (HP symbol) 400 A
Inscribedwritten in red on top: 76 - B - 692 / Tr - Hu - 2/7/61
stamped on panel on top: P.A.L. SERIAL NO. 123
Curatorial RemarksItem moved from WJH to 5th floor box in June, 1996. Demensions unknown.
Hewlett-Packard Company
Date: circa 1957
Accessories: Power cord protruding from back
Object number: WJ1054
Hewlett-Packard Company
Date: date 1997
Accessories: Box
Object number: 1997-1-0719
Hewlett-Packard Company
Date: circa 1970
Accessories: Power cord, 3-pronged plug and socket.
Object number: WJ1098
Hewlett-Packard Company
Date: circa 1965
Accessories: cavity resonator (1990-7-0004b), name plate (1990-7-0004c)
Object number: 1990-7-0004a.1
Hewlett-Packard Company
Date: circa 1965
Object number: 1990-7-0004b
Hewlett-Packard Company
Date: circa 1996
Object number: 2004-1-0403b