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 ACME 274B for the premium ACME-series rectifier option, or Treasure 274B-Z when that series better matches the amplifier and quantity. 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.
