PSVANE 300B Replacement Tubes
Premium tubes for SET amplifiers
How to choose PSVANE 300B tubes
300B is a direct-heated triode used in single-ended triode amplifiers and selected 300B push-pull designs. Shop this category when your amplifier manual clearly specifies 300B output tubes.
Choose AIR 300B-AT as the AIR-series 300B option for compatible 300B amplifiers. Choose Treasure 300B-Z when you want a matched pair from the Treasure series for stereo 300B output positions.
Best fit
- 300B SET amplifiers that use one output tube per channel.
- Compatible 300B push-pull amplifiers that require matched pairs or larger matched sets.
- Listeners comparing AIR and Treasure series positioning within the same 300B tube family.
Buying notes
- Use matched pairs for stereo 300B output stages when channel balance matters.
- Confirm whether your amplifier needs one pair, two pairs, or a different replacement quantity.
- Do not substitute 300B with 2A3, 45, 845, or 805 unless the amplifier is specifically designed for that tube.
300B amplifiers can expose high voltage. Follow the amplifier manual and ask a qualified technician when installation or bias is unclear.
