The Ever Ready K33A is sensibly equivalent to the Mullard type PM2B. As a push pull pair this type of triode could deliver 1.45 Watts audio output. The drive voltage would be about 40 Volts peak to peak.

The classic envelope is 43 mm in diameter and, excluding the B7 base pins, is 92 mm tall.

This exhibit was last updated on 06 February 2003