Chicago : [Popular Engineering Pub. Co.] · leaf 413
ange their that of the carbon lamp or 800 hours. respective lengths so that the changes in A serious objection to the Nernst lamp is found in the fact that the lamp rapidly resistance would balance one another; for, blackens by the deposition of platinum black the decrease in the resistance of the… … Glower* FIG. 185. CIRCUIT CONNECTIONS OF THE NERNST LAMP sum, so in this way the current passing through the circuit would remain constant. The circuit connections of the Nernst lamp are represented in Fig. 185, for a single heater glower and ballast together with the electro-magnetic cut-off.…
Electricity
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