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Frank's Electron tube Pages  
Frank's electron Tube Data sheets More Tube Related Stuff  

Instruments Some documents, descriptions and photos of several instruments.
Manufacturers Index Tube manufacturers' documents, brochures and additional data.
No brand related Documents not related to any specific tube brand.
Images Photos of electron tubes.
Application Data Some datasheets with application information.
CV specifications Conversion table for CV type tubes. Partly with CV-specifications.
VT Numbers Conversion table for VT type tubes.
Old Stores Numbers Conversion table for 'old stores' type numbers.
Philips Service Documents Test&Measurement and black&white-TV (Henrik Ros)