Accession No

2439

Brief Description

slide-wire DC Potentiometer, by Baldwin Instrument Company Ltd., English, 1950 (c)

Origin

England; Kent; Dartford

Maker

Baldwin Instrument Company Ltd.

Class

electrical

Earliest Date

1945

Latest Date

1955

Inscription Date

Material

wood; plastic (ebonite); metal

Dimensions

length 296mm; breadth 169mm; height 145mm

Special Collection

Provenance

Transferred from Department of Physical Chemistry, University of Cambridge, Cambridge, England, 1978.

Inscription

“D.D. POTENTIOMETER INST. No. 39041 / BALDWIN INSTRUMENT CO. LTD. / DARTFORD. KENT.” (on top);
“P100” (on top, added)

Description Notes

Slide-wire DC Potentiometer; made by Baldwin Inst. Co., Dec.1950;
Rectangular wooden box with black plastic top; four pairs of ebonite covered terminals for battery, galvanometer, standard cell, and unknown potential, respectively; four tapping keys; fine and coarse rotary current rheostats; fifteen-position rotary switch and rotary slide-wire calibrated in volts.

Condition: good, complete

References

Events