electron Tube Data sheets
	Hyperelec (=Philips) documents

(up)date	item	size
2021-09-27	General Catalog, 1962?, 24 pages. (includes equivalent list)	10,376,041 bytes (fr)
2021-09-27	General Catalog, 1966, 32 pages. (includes equivalent list)	9,754,681 bytes (fr)
2021-09-27	Tubes and Professional Antennas, 8 pages.	4,791,443 bytes (fr)
2021-09-27	Industrial-, HF- and microwave tubes, 6 pages.	3,973,017 bytes (fr)