16 Philips Valve and Transistor Data Books 1968 1 Transmitting Tubes for Comms 2 Tubes for Microwave equipment 3 Special Quality Tubes, Misc Devices 4 Receiving Tubes, TV Picture Tubes SC1a 08-78 Rectifier Diodes, Thyristors, Triacs SC1b 05-77 Diodes SC2 11-77 LF Transistors SC3 04-76 HF and Switching Transistors SC4a 06-76 Special Semiconductors SC4b 07-76 DEvices for Opto Electronics SC4c 07-78 Semiconductors for Hybrid circuits SC5a 11-76 Professional Analog Integrated Circuits SC5b 03-77 Consumer Integrated Circuits SC6 10-77 Digital Integrated Circuits, LOCMOS 1972 6 Digital Integrated Circuits CM3 01-77 Radio, Audio, TV 7 kg