• Amplitron (see CFA)
• CV14x range of infrared image converters
• Carcinotron
• Catkins
• Corona Stabiliser
• Crossed-field amplifier (CFA)
• Excitron
• Floating drift-tube klystron
• Glow modulator
• Heil tube
• Hobetron (coming soon)
• Ignitron
• Klystron
• Krytron
• Mercury arc rectifiers
• Ozotron
• Platinotron (see CFA)
• Senditron
• Stabilovolt voltage stabiliser
• TR Cell
• Travelling Wave Tubes
• Trigatron
• Tungar rectifiers
• The EF50

• CV marked valves - information CV-marked valves including date and manufacturer codes and history.
• 1944 CV Register of Electronic Valves
• 1946 CV Register of Electronic Valves
• 1963 CV Register of Electronic Valves
• CV lookup facility (under development!)
• E numbers
• Decoding valve numbers
• Radioactive valves
• Valve base diagrams and dimensions
• VT number crossovers: UK military/UK GPO/USA

The following are links to external sources of information:

• Philips factory codes - Philips factory codes (Jpeg)
• Philips tube codes - Philips tube codes (PDF)
• Codes and type numbers - Manufacturing codes and type numbers
• Still vital! - Tubes still vital after all these years

• Books (a list of books I have that provide reference material for the exhibits and in general)

• 1943 Sylvania Technical Manual
• 1949 Sylvania Technical Manual
• 1959 Sylvania Technical Manual
• NJ7P tube database search
• WPS electron tube database
• Frank's electron tube pages
• Franz Hamberger's electron tubes and valves
• Duncan Amps TDSL3
• Audiomatica tube directory

• Hans-Thomas Schmidt's collection
• UK National Valve Museum
• The Thermionic Website - Valve info and projects