Mae’r wefan hon yn defnyddio cwcis i hwyluso’ch defnydd. Drwy ddefnyddio’r wefan hon rydych chi’n cytuno i dderbyn cwcis dan ein Polisi Cwcis.

Lleoliadau +

Fy nghyfrif

Casgliadau ac Ymchwil

Adrannau Casgliadau Arlein Canolfan Gasgliadau Cenedlaethol

Casgliadau Arlein

Amgueddfa Cymru

Chwilio Uwch

Testun rhydd

Rhif yr Eitem

Adnabyddiaeth

Pwnc

Artistiaid/Creadur

Lle

Categori

Cofnodion â delweddau yn unig

Nôl i Ganlyniadau

Marconi, photograph

Transmitting apparatus and morse inker used by Marconi for the Lavernock to Brean Down demonstration of wireless telegraphy for the first time across water in May 1897. Inspected by three Post Office officials (identified as being Mr G.N. Partridge, Superintending Engineer, Mr H.C. Price, Engineer, and Mr S.E. Hailes, Lineman). Mounted on discoloured cream card.

Pwnc

Diwydiant

Rhif yr Eitem

85.64I

Creu/Cynhyrchu

unknown

Dyddiad:

Derbyniad

Collected officially

Mesuriadau

mount (mm): 305

mount (mm): 255

mount (mm): 410

mount (mm): 375

Techneg

sepia (monochrome photograph)

photograph

Deunydd

papur

cerdyn

Lleoliad

In store

Categorïau

communications utilities South Glamorgan 1890s

Dosbarth

communication

Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.

Eitemau cysylltiedig

Diwydiant

Marconi, photograph

34.219/29

Facsimile of transmitting apparatus used by Marconi in his demonstrations of wireless telegraphy in 1896

Diwydiant

Photograph (print)

34.219/27

The original apparatus used by Marconi in his first experiments on transmission of wireless signals between Lavernock Point and the Flat Holm in 1897. The apparatus is being examined by Post Office Officials.

Diwydiant

Marconi, photograph

68.153/3

Letter of introduction and card presented by Marconi on his first visit to Mr. Preece.

Diwydiant

Marconi's letter of introduction, photograph

34.219/31