Sensibly equivalent¶ to:
The NU33 is an EHT rectifier based on the Cossor SU2150A. The CV number is CV1290.
The identification is only in water soluble paint and has been damaged. The saddle construction shouts Cossor but one can not be certain.
See SU2150A for full details.
The main image shows a wire from the cathode wound round and welded to the right hand side heater connection.
The identification within the circle has been washed away.
The classic envelope is 49 mm in diameter and, excluding the B4 base pins, is 130 mm tall.
Absolute Maximum Operating Conditions¶
Updated April 13, 2019. shape:classic construction:pinch type:rectifier.hw age:1930.1940 base:b4 heater:2.0v pins:4 pin:1.- pin:2.- pin:3.h.k pin:4.h pin:tc.a