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300B PSVANE HIFI Vacuum Tube Replaces 300BL 300B-T 300BS 300B-Z HIFI Audio Valve Tube Amplifier Kit DIY Matched Quad
300B PSVANE HIFI Vacuum Tube Replaces 300BL 300B-T 300BS 300B-Z HIFI Audio Valve Tube Amplifier Kit DIY Matched Quad
Regular price
$846.38 USD
Regular price
$253.91 USD
Sale price
$846.38 USD
Quantity
Couldn't load pickup availability
PSVANE 300B HiFi Vacuum Tube – Precision Matched Quad for Pure Class A1 Audio
Bring classic tube warmth and breathtaking musicality back to your system with the PSVANE 300B Vacuum Tube Matched Quad. Designed for discerning audiophiles and DIY builders, this directly heated triode delivers rich, lifelike sound and stable power for single-ended Class A1 amplifiers where up to 10W of output is required. Each tube is factory tested, genuine, and precision matched so your amplifier can perform at its absolute best.
🌟 Why You’ll Love It
- Authentic 300B sound signature – Enjoy the classic, smooth, and musical midrange that has made 300B tubes legendary in HiFi audio.
- Direct replacement for multiple 300B types – Compatible with 300BN, 300BT, 300BZ, 300BG, 7300B, 4300B, 300B-98, 300B series, making it ideal for upgrades and DIY amplifier projects.
- Optimized for Class A1 amplification – A directly heated cathode medium power triode, perfect for audio amplifiers requiring up to 10W output power.
- Factory genuine & rigorously tested – Every tube is brand-new, original factory product, tested and matched for consistent performance and channel balance.
- Precision matched quad – Purchase of 4 pieces gives you a precision matched quad, ideal for stereo power stages and multi-tube designs. Matching for 2, 4, or 8 tubes available according to your needs.
- Extended 15‑month warranty – Enjoy peace of mind with a 15-month warranty from date of purchase and free replacement for any quality problems within one year.
- Secure, shockproof packaging – Multi-layer pearl cotton and bubble bags with reinforced protection ensure your tubes arrive safely, ready to plug in and play.
- Ideal for HiFi enthusiasts & DIY builders – Perfect for upgrading existing 300B amplifiers or building your own high-end valve amplifier kit.
⚙️ What’s Inside
| Product Name | PSVANE 300B Vacuum Tube Replace 300BN 300BT 300BZ 300BG 7300B 4300B 300b-98 300B series for HIFI Audio Valve Electronic Tube Amplifier Kit DIY Factory Genuine Tested and Precision Matched Quad |
| Application | Directly heated cathode medium power triode for class A1 amplification. In the audio amplifier, it is suitable for the occasion where the output power is required to be 10W. |
Limit rating
| Anode voltage..................480V |
| Anode Dissipated Power............40W |
| cathode current |
| Self-biased..................100 mA |
| Fixed Bias..................70 mA |
Interpole capacitance
| Input Capacity .................. 9PF |
| Output capacitance........................4.3PF |
| Cross-circuit capacitance..................15PF |
static parameters
| Ua..............................300V |
| -Ug........................ 60 V |
| Ia..............................60mA |
| Gm..............................5.5mA/V |
| Ri..............................0.7 KΩ |
| μ.............................. 3.85 |
| Pout........................6.6W |
Recommended parameters
| Ug |
| Ua Uf(AC) Uf(DC) I a |
| V --~V----V---- mA |
| 200--33--29.5 --77 |
| 200--45--41.5 --20 |
| 250--46--42.6 --74 |
| 250--57--53.6 --22 |
| 300--60--56.5 --68 |
| 300--70--66.5 --23 |
| 400--86--82.5 --68 |
| 400--98--94.5 --19 |
Limit parameters
| 450--100--96.5--60 |
Service warranty
The electronic tubes operated by our store are all
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