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Frank's electron Tube Data sheets STC documents  

(up)date item size
2007-09-07 STC 1947 manual, complete. Thanks to John Atwood & David Porter. 7,438,028 bytes
2009-04-03 Microwave Tubes. 23,781,614 bytes
2017-09-16 Components Handbook Volume 1. Hermetic Seals, Infra-Red Filters, Lamps, Thermal Delay Switches, Vacuum Gauges. 44,339,535 bytes
2017-09-16 Components Handbook Volume 2B. Tetrodes, Pentodses, Special Quality Valves. 61,840,403 bytes
2017-09-16 Components Handbook Volume 3. Micro Wave Devices. 90,917,397 bytes
2017-09-16 Components Handbook Volume 4. Capacitors. 61,300,423 bytes
2019-01-18 STC Components - Microwave Tubes - Summary Data. 1984. 7,376,396 bytes