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 EL34, GZ34, ECC82 and ECC83. Some of the sheets originally came from Philips, others from Mullard. Those for the EL84 are dated November 1956, with revisions, August 1957.

The data sheets from an early Mullard collection can be found on this page.

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