Experimental coherers designed or used by Sir Oliver Lodge, 1894-1904

Made:
1894-1904 in United Kingdom
designer:
Oliver Joseph Lodge
Experimental coherers designed or used by Sir Oliver Lodge, 1894-1904 Experimental coherers designed or used by Sir Oliver Lodge, 1894-1904 Experimental coherers designed or used by Sir Oliver Lodge, 1894-1904 Experimental coherers designed or used by Sir Oliver Lodge, 1894-1904 Experimental coherers designed or used by Sir Oliver Lodge, 1894-1904 Experimental coherers designed or used by Sir Oliver Lodge, 1894-1904 Experimental coherers designed or used by Sir Oliver Lodge, 1894-1904 Experimental coherers designed or used by Sir Oliver Lodge, 1894-1904 Experimental coherers designed or used by Sir Oliver Lodge, 1894-1904 Experimental coherers designed or used by Sir Oliver Lodge, 1894-1904 Experimental coherers designed or used by Sir Oliver Lodge, 1894-1904 Experimental coherers designed or used by Sir Oliver Lodge, 1894-1904 Experimental coherers designed or used by Sir Oliver Lodge, 1894-1904 Experimental coherers designed or used by Sir Oliver Lodge, 1894-1904 Experimental coherers designed or used by Sir Oliver Lodge, 1894-1904 Experimental coherers designed or used by Sir Oliver Lodge, 1894-1904 Experimental coherers designed or used by Sir Oliver Lodge, 1894-1904 Experimental coherers designed or used by Sir Oliver Lodge, 1894-1904 Experimental coherers designed or used by Sir Oliver Lodge, 1894-1904 Experimental coherers designed or used by Sir Oliver Lodge, 1894-1904 Experimental coherers designed or used by Sir Oliver Lodge, 1894-1904 Experimental coherers designed or used by Sir Oliver Lodge, 1894-1904 Experimental coherers designed or used by Sir Oliver Lodge, 1894-1904 Experimental coherers designed or used by Sir Oliver Lodge, 1894-1904 Experimental coherers designed or used by Sir Oliver Lodge, 1894-1904 Experimental coherers designed or used by Sir Oliver Lodge, 1894-1904
Experimental coherers designed or used by Sir Oliver Lodge, 1894-1904 Experimental coherers designed or used by Sir Oliver Lodge, 1894-1904 Experimental coherers designed or used by Sir Oliver Lodge, 1894-1904 Experimental coherers designed or used by Sir Oliver Lodge, 1894-1904 Experimental coherers designed or used by Sir Oliver Lodge, 1894-1904 Experimental coherers designed or used by Sir Oliver Lodge, 1894-1904 Experimental coherers designed or used by Sir Oliver Lodge, 1894-1904 Experimental coherers designed or used by Sir Oliver Lodge, 1894-1904 Experimental coherers designed or used by Sir Oliver Lodge, 1894-1904 Experimental coherers designed or used by Sir Oliver Lodge, 1894-1904 Experimental coherers designed or used by Sir Oliver Lodge, 1894-1904 Experimental coherers designed or used by Sir Oliver Lodge, 1894-1904 Experimental coherers designed or used by Sir Oliver Lodge, 1894-1904 Experimental coherers designed or used by Sir Oliver Lodge, 1894-1904 Experimental coherers designed or used by Sir Oliver Lodge, 1894-1904 Experimental coherers designed or used by Sir Oliver Lodge, 1894-1904 Experimental coherers designed or used by Sir Oliver Lodge, 1894-1904 Experimental coherers designed or used by Sir Oliver Lodge, 1894-1904 Experimental coherers designed or used by Sir Oliver Lodge, 1894-1904 Experimental coherers designed or used by Sir Oliver Lodge, 1894-1904 Experimental coherers designed or used by Sir Oliver Lodge, 1894-1904 Experimental coherers designed or used by Sir Oliver Lodge, 1894-1904 Experimental coherers designed or used by Sir Oliver Lodge, 1894-1904 Experimental coherers designed or used by Sir Oliver Lodge, 1894-1904 Experimental coherers designed or used by Sir Oliver Lodge, 1894-1904 Experimental coherers designed or used by Sir Oliver Lodge, 1894-1904

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Science Museum Group Collection
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© The Board of Trustees of the Science Museum

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© The Board of Trustees of the Science Museum

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© The Board of Trustees of the Science Museum

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© The Board of Trustees of the Science Museum

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Thirty coherers of various types and a pill box containing a quantity of porphyrised (powdered) copper, designed or used by Sir Oliver Lodge, British, 1894-1904.

These coherers, or detectors of Hertzian waves, are part of a collection originally owned by Sir Oliver Lodge, and show the development of design. Some were probably designed by Lodge's assistant E E Robinson, while others may be of French origin. One of this collection of thirty coherers is currently missing.

Coherer with coarse brass turnings, 1894

Coherer with coarse brass turnings, 1894

1894
Filings coherer, glass tube curved into near U-shape at one end with coil winding at other end, 1894-1904

Filings coherer, glass tube curved into near U-shape at one end with coil winding at other end, 1894-1904

1894-1904
Filings coherer, glass tube, 1898

Filings coherer, glass tube, 1898

1898
Coherer, with several needles, 1894-1904

Coherer, with several needles, 1894-1904

1894-1904
Coherer, with several needles in contact with crystal, 1894-1904

Coherer, with several needles in contact with crystal, 1894-1904

1894-1904
Filings coherer, Lodge-Muirhead system, 1900-1910

Filings coherer, Lodge-Muirhead system, 1900-1910

1900-1910
Filings coherer, Lodge-Muirhead system, 1900-1910

Filings coherer, Lodge-Muirhead system, 1900-1910

1900-1910
Filings coherer, glass tube bent into U-shape at one end, 1894-1904

Filings coherer, glass tube bent into U-shape at one end, 1894-1904

1894-1904
Filings coherer, glass tube containing powdered copper, bulb at one end, 1894-1904

Filings coherer, glass tube containing powdered copper, bulb at one end, 1894-1904

1894-1904
Filings coherer, glass tube capped at ends, 1894-1904

Filings coherer, glass tube capped at ends, 1894-1904

1894-1904
Filings coherer, Lodge pattern, 1895-1900

Filings coherer, Lodge pattern, 1895-1900

1895-1900
Filings coherer, small glass tube with bulb at one end and cap of red sealing wax at other end, 1898

Filings coherer, small glass tube with bulb at one end and cap of red sealing wax at other end, 1898

1898

Coherer, narrow-bore glass tube, 1894-1904

1894-1904
Filings coherer, glass tube with side-pocket attached to mounting bracket, 1894-1904

Filings coherer, glass tube with side-pocket attached to mounting bracket, 1894-1904

1894-1904
Filings coherer, glass tube formed into bulbs at each end at right angles, 1899

Filings coherer, glass tube formed into bulbs at each end at right angles, 1899

1899
Filings coherer, glass tube formed into T-shape at one end and bent round into U-shape at other end with bulb, 1899

Filings coherer, glass tube formed into T-shape at one end and bent round into U-shape at other end with bulb, 1899

1899
Filings coherer, glass tube bent at 45-degree angle at one end to form side-pocket, 1898

Filings coherer, glass tube bent at 45-degree angle at one end to form side-pocket, 1898

1898
Filing coherer, glass tube, fitted on to mounting bracket with terminals, 1894-1904

Filing coherer, glass tube, fitted on to mounting bracket with terminals, 1894-1904

1894-1904
Filings coherer, glass tube bent into U-shape at one end with bulb to form side-pocket on mounting bracket with terminals, 1894-1904

Filings coherer, glass tube bent into U-shape at one end with bulb to form side-pocket on mounting bracket with terminals, 1894-1904

1894-1904
Coherer, narrow-bore glass tube, 1894-1904

Coherer, narrow-bore glass tube, 1894-1904

1894-1904
Filings coherer, small glass tube with bulb at one end, 1894-1904

Filings coherer, small glass tube with bulb at one end, 1894-1904

1894-1904
Filings coherer, small glass tube with bulb at one end, 1894-1904

Filings coherer, small glass tube with bulb at one end, 1894-1904

1894-1904
Filings coherer, glass tube almost of taper shape, 1894-1904

Filings coherer, glass tube almost of taper shape, 1894-1904

1894-1904
Coherer, with steel needle inside part-wound with copper wire, 1894-1904

Coherer, with steel needle inside part-wound with copper wire, 1894-1904

1894-1904
Filings coherer, Lodge-Muirhead system, 1900-1910

Filings coherer, Lodge-Muirhead system, 1900-1910

1900-1910

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Details

Category:
Radio Communication
Object Number:
1942-40
Materials:
glass, metal (unknown), copper (alloy), brass (copper, zinc alloy) and wax
Measurements:
overall (largest coherer): 280 mm x 90 mm x 15 mm,
overall (display board): 400 mm x 300 mm 3 kg
type:
coherer
credit:
Donated by E. E. and T. H. Robinson

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