Weston Electrical Instruments for Use on Alternating-Current Switchboards

London: Weston Electrical Instrument Company, 1911. 4to, pp. 103, Index, b/w frontis, b/w ills., decorated endpapers, top cnrs bumped, faint yellowing page edges, original wraps, top front cnr bumped, small closed tear head spine, good.

Covers electrodynamometer instruments, single-phase and polyphase wattmeters, synchroscopes and frequency meters. Item #85268

Price (AUD): $66.00   Other currencies