PSVANE Treasure 2A3-Z Power Tube Matched Pair
Direct-heated triode pair for compatible 2A3 single-ended amplifiers
Screened before shipping - Secure packaging - Global shipping
Description
The PSVANE Treasure 2A3-Z is a direct-heated triode pair for compatible 2A3 amplifiers. PSVANE lists 2.5 V / 2.5 A filament operation, 300 V maximum anode voltage, and 25 W maximum anode dissipation.
Treasure 2A3-Z replacement notes
- PSVANE Treasure 2A3-Z is a direct-heated 2A3 triode matched pair for compatible 2A3 amplifiers.
- Use it only in amplifier positions designed for 2A3 output tubes.
- 2A3 should not be treated as interchangeable with 300B, 45, or other direct-heated triodes unless the amplifier is designed for that tube.
Before ordering Treasure 2A3-Z
- Choose a matched pair for stereo 2A3 single-ended amplifiers or paired 2A3 output positions.
- Confirm filament voltage, plate voltage, and bias requirements before installation.
- Send the amplifier model before checkout if the amplifier can use multiple direct-heated triode families.
Compatibility
Use only in amplifiers designed for 2A3 output tubes. Confirm filament voltage, bias requirements, plate voltage, and whether the amplifier requires matched pairs before installation.
Sound Signature
Warm, rich, and stable with the open midrange and direct-heated triode character sought in refined low-power hi-fi systems.
Testing & Matching
Sold as a 2-piece matched pair under PSVANE Treasure-series matched-pair service.
Shipping & Warranty
Warranty
90-day warranty against manufacturing defects. DOA coverage included.
View warranty policy ->Buying questions
What does PSVANE Treasure 2A3-Z replace?
PSVANE Treasure 2A3-Z replaces 2A3 output tube positions in compatible 2A3 amplifiers.
Is Treasure 2A3-Z sold as a matched pair?
Yes. Treasure 2A3-Z is listed as a matched pair for compatible stereo or paired 2A3 output positions.
Can 2A3 replace 300B?
No. 2A3 should not replace 300B unless the amplifier is specifically designed to support both tube families.
What amplifier type is Treasure 2A3-Z for?
It is for compatible 2A3 single-ended amplifiers and other designs that explicitly specify 2A3 output tubes.
Should I check bias before replacing 2A3 tubes?
Yes. Follow the amplifier manual and confirm the required operating point before replacing 2A3 output tubes.
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