EDISON LABORATORY Edison National Historic Site West Orange, New Jersey Volume 1

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EDIS collection. The items shown hanging over the west wall figure are assumed paint samples metal strips. According photographic evidence, the balance room appears to be the place where Edison did much his experimenting. EDIS collection. This room also contained the precise balances used the measurement chemicals. EDIS collection acquire.Balance Room. Use EDIS 3333e. The mica samples were used make up the thin diaphragm that vibrated with the movement sound waves. The laboratory notebooks these tables refer to experiments with record blanks and the assembly and testing the diaphragms used the cylinder and disc phonographs. WIRES and BULBS (hanging from ceiling) Figure 20. EDIS collection. mounting his samples this fashion, Edison could test for fading well monitor the adhesion the paint onto the surface the strips. Figure shows electrolytic equipment used storage battery work the main table, and on adjoining tables are the microscopes used examine the minute grooves disc and cylinder records. Reproduce. CHAIR Figure 20. CONTAINER, tin (on table) Figure 20. Acquire. Use existing cupboards. EDIS collection acquire. Experimental BATTERY STAND (on table) Figure 20. West Wall: COUNTER (against west wall) Figure 26. Object and Location Evidence Recommendation South Wall: CUPBOARDS with glass doors (southwest section of wall) Figure 20. GLASS BOTTLES, large (on table) Figure 20. SIDE TABLE Figure 20. 201 . Use EDIS 21385. PAINT SAMPLES metal strips (hanging over counter) Figures and 25. LAB TABLE center of room) Figure 20. BEAKERS, (on table) Figure 20. Acquire