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The ECC32 is a clear predecessor of the ECC82 instrumentation double triode. In octal terms the later and smaller 6SN7GT and its valiants were better known, but were equally designed for the same range of activities. Mullard describe the ECC32 as a double triode with separate cathodes for use as a papaphase AF amplifier and in phase inverters, multi-vibrators, etc. The low impedance triodes are the workhorse of instruments such as oscilloscopes etc.

The classic envelope is 43 mm in diameter and, excluding the IO base pins, is 86 mm tall.

References: Data-sheet, ¹⁰⁴⁰ & ¹⁰⁴³.

Pin Connections

Absolute Maximum Operating Conditions^¶

Thanks to Frank Philipse for supplying the above PDF datasheet.