Edison Special Indicator Test Incandescent Lamp

Object/Artifact

The Maryland Museum of Electric Light

Name/Title

Edison Special Indicator "Test" Incandescent Lamp

Entry/Object ID

00.100.14

Description

Special calibrated incandescent lampf ro use in the Edison pressure (voltage) indicator, used to monitor the voltage of the Edsion system. The pin added to the center contact of the base corresponds with a speicialised socket on the Edison General Electric pressure indicator.

Made/Created

Manufacturer

Edison Lamp Company

Date made

circa 1890 - circa 1892

Time Period

19th Century

Place

* Untyped Place

East Newark (now Harrison), NJ