Hewlett-Packard HP Attenuator Set and Voltage Divider 350B -- 1940s vintage

Description

Hewlett-Packard HP Attenuator Set and Voltage Divider 350B -- 1940s vintage
Untested vintage item; overall in good cosmetic shape. Please see pictures for condition and for what is included. Comes from a Midwest research university.
From manufacturer:
The -hp-- Model 350 can be used wherever a decade attenuator is required. In conjunction with an -hp-- oscillator and one voltmeter, this -hp- Model 350 Attenuator may be used to make exact measurements of power gain. See figure 2. The 350 may also be used to augment an -hp- audio oscillator and a vacuum tube voltmeter (-hp-- 400A) to form a signal generator. See figure 3. The 350 is built with a large power handling capacity-5 watts continuous duty. It is particularly adapted to-work in the supersonic field, and for other work in measurements above the range of the conventional a-f attenuator. It may also be used for work down to zero frequency. The 350, like all -hp- instruments, is held to a minimum size for convenience in use. Actual dimensions are 5" x 8" x 41/2". Input and output binding posts are available on the front panel. The unit is completely shielded from moderate fields.
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