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Tubes / semiconductors by category - Manufacturer

Selected: Roytron (tubes) - see also Triad Television & Mfg. Co.; Pawtucket, RI


Name Maker Year User Usage Type Base Pin-Assigment Charts Photos Characteristic Diagrams Typical Application Circuit Prices Forum-Threads private Collector-Cards Models

2B7 Common typ Radio/TV-r Universal Double D 7-Pin-B 36    399 
112A Common typ 1927 Radio/TV-r Power/Out Triode, UX-Base 11  F  –  71 
280 Common typ 1927 Radio/TV-r Power-sup Full-Wav UX-Base 24  F  1031 

3 tubes or semiconductors found.

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