PSVANE 274B Replacement Tubes
Rectifier tube for compatible high-end tube amplifiers and power supplies
How to choose PSVANE 274B rectifier tubes
274B is a rectifier tube used in compatible tube amplifier power supplies. Shop this category only when the amplifier or power supply specifies 274B or explicitly allows this rectifier family.
Choose Treasure 274B-Z when your amplifier supports a 274B rectifier and the required quantity matches the listing. Rectifier replacements should be checked more carefully than small-signal swaps because the power supply depends on current draw, filament demand, and filter design.
Best fit
- Tube power supplies that specify 274B rectifier tubes.
- Amplifiers where the manual confirms rectifier current and filament requirements.
- Buyers replacing rectifiers by documented compatibility rather than socket shape alone.
Buying notes
- Confirm whether your amplifier uses one rectifier tube or a pair before ordering.
- Do not replace 5U4G, 5AR4, GZ34, or other rectifier labels with 274B unless the manual allows it.
- Check filter capacitance and rectified current requirements before installation.
Rectifier substitutions can affect amplifier power-supply voltage and reliability. Confirm the manual or ask support before ordering.
