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

Morse tape records, photograph

Black and white photograph showing some of the actual Morse tape records of wireless signals passed between Lavernock Point, Flatholm and Brean Down in May 1897. Photograph shows strips with letters and dashes with writing below typed paper stuck to back and copyright pink stamp on left hand corner on the back.

Pwnc

Diwydiant

Rhif yr Eitem

34.219/28

Derbyniad

Donation, 20/4/1934

Mesuriadau

Meithder (mm): 205

Lled (mm): 150

Deunydd

papur

Lleoliad

In store

Categorïau

communications utilities 1890s

Dosbarth

communication

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

Eitemau cysylltiedig

Transmitting apparatus and morse inker used by Marconi.

Diwydiant

Marconi, photograph

34.219/32

Diwydiant

Marconi, photograph

34.219/29

Diwydiant

Early type of 'Coherer' reciever, photograph

34.219/30

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