Valve radio by Beethoven Electical, c1940.
Science Museum Group Collection
© The Board of Trustees of the Science Museum
Valve radio by Beethoven Electical, c1940.
Science Museum Group Collection
© The Board of Trustees of the Science Museum
Valve radio by Beethoven Electical, c1940.
Science Museum Group Collection
© The Board of Trustees of the Science Museum
Valve radio by Beethoven Electical, c1940.
Science Museum Group Collection
© The Board of Trustees of the Science Museum
Valve radio by Beethoven Electical, c1940.
Science Museum Group Collection
© The Board of Trustees of the Science Museum
Valve radio by Beethoven Electical, c1940.
Science Museum Group Collection
© The Board of Trustees of the Science Museum
Valve radio by Beethoven Electical, c1940.
Science Museum Group Collection
© The Board of Trustees of the Science Museum
Valve radio by Beethoven Electical, c1940.
Science Museum Group Collection
© The Board of Trustees of the Science Museum
Valve radio by Beethoven Electical, c1940.
Science Museum Group Collection
© The Board of Trustees of the Science Museum
SMG00244039
Science Museum Group
© The Board of Trustees of the Science Musuem