experimental Lodge-Muirhead wireless telegraph receiver, 1900-1910

Experimental Lodge-Muirhead wireless telegraph receiver Experimental Lodge-Muirhead wireless telegraph receiver Experimental Lodge-Muirhead wireless telegraph receiver Experimental Lodge-Muirhead wireless telegraph receiver Experimental Lodge-Muirhead wireless telegraph receiver

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Creative Commons LicenseThis image is released under a CC BY-NC-SA 4.0 Licence

Buy this image as a print 

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License this image for commercial use at Science and Society Picture Library

License

Creative Commons LicenseThis image is released under a CC BY-NC-SA 4.0 Licence

Buy this image as a print 

Buy

License this image for commercial use at Science and Society Picture Library

License

Creative Commons LicenseThis image is released under a CC BY-NC-SA 4.0 Licence

Buy this image as a print 

Buy

License this image for commercial use at Science and Society Picture Library

License

Creative Commons LicenseThis image is released under a CC BY-NC-SA 4.0 Licence

Buy this image as a print 

Buy

License this image for commercial use at Science and Society Picture Library

License

Experimental Lodge-Muirhead wireless telegraph receiver
Science Museum Group Collection
© The Board of Trustees of the Science Museum

Experimental Lodge-Muirhead wireless telegraph receiver
Science Museum Group Collection
© The Board of Trustees of the Science Museum

Experimental Lodge-Muirhead wireless telegraph receiver
Science Museum Group Collection
© The Board of Trustees of the Science Museum

Experimental Lodge-Muirhead wireless telegraph receiver
Science Museum Group Collection
© The Board of Trustees of the Science Museum

Experimental Lodge-Muirhead wireless telegraph receiver
Science Museum Group Collection
© The Board of Trustees of the Science Museum

Experimental Lodge-Muirhead wireless telegraph receiver, designed and built by Robert Pickersgill Howgrave-Graham, British, about 1905.

This is an experimental receiver for wireless telegraphy designed and built by R P Howgrave-Graham in about 1905. It makes use of the steel-disc coherer, or thin-film detector, developed by Oliver Lodge and his principal assistant Edward Robinson. Howgrave-Graham described the construction of this receiver in his book' 'Wireless Telegraphy for Amateurs', published by Percival Marshall & Co, London (no date given but the British Library copy was received by them in May 1907). The receiver illustrated in the book is exactly similar to the receiver given to the Science Museum by Howgrave-Graham in 1923. From references in the book, a construction date of about 1905 has been conjectured.

Details

Category:
Radio Communication
Object Number:
1923-443
Materials:
mahogany (wood), copper (alloy), steel (metal), sealing wax, plastic (unidentified), wood (unidentified) and brass (copper, zinc alloy)
Measurements:
overall: 150 mm x 210 mm x 560 mm, 4.12kg
mechanism: 146 mm x 101 mm x 59 mm,
type:
telegraph instrument
credit:
Donated by Northampton Polytechnic Institute

Parts

Experimental Lodge-Muirhead wireless telegraph receiver, 1900-1910

Experimental Lodge-Muirhead wireless telegraph receiver, 1900-1910

Experimental Lodge-Muirhead wireless telegraph receiver, designed and built by Robert Pickersgill Howgrave-Graham, British, about 1905.

More

This is an experimental receiver for wireless telegraphy designed and built by R P Howgrave-Graham in about 1905. It makes use of the steel-disc coherer, or thin-film detector, developed by Oliver Lodge and his principal assistant Edward Robinson. Howgrave-Graham described the construction of this receiver in his book' 'Wireless Telegraphy for Amateurs', published by Percival Marshall & Co, London (no date given but the British Library copy was received by them in May 1907). The receiver illustrated in the book is exactly similar to the receiver given to the Science Museum by Howgrave-Graham in 1923. From references in the book, a construction date of about 1905 has been conjectured.

Measurements:
overall: 150 mm x 210 mm x 560 mm, 4.12 kg
Materials:
mahogany (wood) , copper (alloy) , steel (metal) , sealing wax , plastic (unidentified) , wood (unidentified) and brass (copper, zinc alloy)
Object Number:
1923-443/1
type:
telegraph instrument
Mechanism from experimental Lodge-Muirhead wireless telegraph receiver 1900-1910

Mechanism from experimental Lodge-Muirhead wireless telegraph receiver 1900-1910

Small mechanism from experimental Lodge-Muirhead wireless telegraph receiver, designed and built by Robert Pickersgill Howgrave-Graham, British, about 1905.

More

This is an experimental receiver for wireless telegraphy designed and built by R P Howgrave-Graham in about 1905. It makes use of the steel-disc coherer, or thin-film detector, developed by Oliver Lodge and his principal assistant Edward Robinson. Howgrave-Graham described the construction of this receiver in his book' 'Wireless Telegraphy for Amateurs', published by Percival Marshall & Co, London (no date given but the British Library copy was received by them in May 1907). The receiver illustrated in the book is exactly similar to the receiver given to the Science Museum by Howgrave-Graham in 1923. From references in the book, a construction date of about 1905 has been conjectured.