The LINLAI WE replica 274B follows exactly the same design of the original Western Electric 274B.
WE274B glass enclosure is of slightly smaller size than an average 300B tube.
Technical specification:
274B is very similar with 5U4G and 5Z3P, which can be replaced by each other in many cases. In some cases, you may be able to use 274B to replace a 5AR4. Please always check with your amplifier about tube substitution in case you accidentally damage your precious amplifier or the newly acquired tube. Such damage is NOT covered by tube warranty and tube cannot be replaced.
Dimension (in mm):
Heater
- Uf………………5V
- If…………… 2.5A
Maximum Rating
- anode inverse peak voltage……………1550V
- anode peak current ………750mA
Recommend working condition
- Anode supply voltage 2×500V
- Each arm impedance 75Ω
- load impedance 2000Ω
- Filter capacitor 4μF
- Rectifier current ≧220mA
