The data sheets on this page come from the third volume of a three volume valve (tube) and semi-conductor manual issued by Amperex in 1965. Other valves encompassed are the GZ34, EL34, EL84, and EC83. Some of the sheets originally came from Philips, others from Mullard. Those for the ECC82 (which are undated) are more extensive than those embodied in early Mullard books.

Early Mullard data sheets for the ECC82 are available on this page.

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