The Mazda ECL80 is a triode, output pentode for audio use, it is a low power device with the triode feeding the pentode for a compact single end audio stage.
The single cathode with the triode mounted above the output section and at right angles to it.
Made in the UK.
The thin glass tube envelope is 20 mm in diameter and, excluding the B9A base pins, is 58 mm tall.
References: Datasheet & 1040. Type ECL80 was first introduced in 1950.
