The G10/241E is a neon-filled Nomotron made by the British manufacturer STC and capable of speeds of up to 20,000 counts/second. It operates in a unidirectional, single-pulse mode, advancing the discharge by one position with each pulse and featuring ten stable positions. Unlike conventional decadic counting tubes (Dekatrons), its guiding electrodes are concealed behind a metal shell. Only the ten stable cathodes are visible through circular openings, each marked with its corresponding value on a transparent mica shield.
Read more?
Nomotrons are counting tubes equipped with an extra shield that restricts visibility to the stable cathode positions. These stable positions are typically labeled with their corresponding numeric values for easier interpretation. Essentially, Nomotrons are Dekatrons specifically optimized for better human readability.
The Tesla 11TU7 is a neon-filled Nomotron counting tube capable of up to 20,000 counts/second. It operates in a unidirectional, single-pulse mode, advancing the discharge by one position with each pulse and featuring ten stable positions. Unlike conventional decadic counting tubes (Dekatrons), its guiding electrodes are concealed behind a metal shell. Only the ten stable cathodes are visible through circular openings, each marked with its corresponding value on a transparent mica shield.
Read more