Components from Colossus project, 1940-1945
1940-1945
Components from Colossus project (valve in holder; resistor; capacitor), designed by Tommy Flowers, made at the Post Office Research Station and used at the Government Code and Ciphers School at Bletchley Park, 1940-1945
valve from Colossus project, 1940-1945
1940-1945
Resistor and capacitor, from Colossus project, designed by Tommy Flowers, made at the Post Office Research Station and used at the Government Code and Ciphers School at Bletchley Park, 1940-1945
Valve from Colossus project, 1940-1945
1940-1945
Valve in holder, from Colossus project, designed by Tommy Flowers, made at the Post Office Research Station and used at the Government Code and Ciphers School at Bletchley Park, 1940-1945