Description
No doubts the best ever made full wave rectifier in the world!
Introducing a pair of genuine Western Electric 274B with engraved letters on base.
Both have same design and plate circa 1932.
Two version were made, the 274A and 274B.
The 274A had four pin base UX4 like a 300B whilst the 274B is much more versatile valve having octal base thus it fits on 90% of all audio gear these days!
The 274 is a directly heated rectifier where the filament is used straight as the cathode.
Filament 5 Volts was made for full wave rectification
Both valves are in MINT condition and never been used
Tested with AVO VCM 163
Western Electric 274B tested A1=A2 100% emission
Western Electric 274B tested A1=A2 100% emission
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