This is a
octal base rectifier tube widely used in guitar
amplification and audio. The Golden Dragon 5U4G is
manufactured in China to strict UK specification.
274B
This is a full
wave rectifier tube. By upgrading the filament supply to 3
amps, the 274B can be replaced by the 5U4G. The Golden
Dragon 274B is a classic full wave rectifier manufactured in
China to strict UK specification.
5AR4
This is an
octal base full wave rectifier capable of supplying all of
the DC high voltage supply needed for most medium power
audio amplifiers.
