GZ33 Mullard Square getter, same code rs1 B8J New Old Stock boxed pair valves U54 53KU equivalent tested 100%
GZ33 Mullard rectifiers same code on glass £ 300 pair
Description
The GZ33 is a full wave rectifier and a high current version at 250mA. Like the GZ34, the GZ33 has the cathode tied to one side of the filament
It was first introduced in 1954
We offer a pair of spanky new tested 100% Mullard GZ33 with square getter.
Both valves have the same code etched on glass rs1 B8J
Both valves come with original boxes
Tested with AVO VCM 163 A1=A2 100% emission
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