Tube Manuals & Data
- Amperex Hi-Fi and Audio tubes 1956
- GE Essential Characteristics
- Raytheon 1938 Handbook of Amateur Tube Uses
- RCA Cunningham Radiotron Manual RC12 1934
- RCA Receiving Tube Manual RC17 1954
- RCA Receiving Tube Manual RC18 1956
- RCA Receiving Tube Manual RC19 1959
- RCA Receiving Tube Manual RC20 1960
- RCA Receiving Tube Manual RC23 1964
- RCA Receiving Tube Manual RC30 1975
- Radiotron Designer’s Handbook 4th Edition 1953
- STC Standard Valves 1947
- Sylvania Technical Manual 1951
- Tung Sol Technical Data 1948
- Western Electric Tube Manual 1963
- Western Electric Vacuum Tube Data 1941
Evil Science Audio 