PSVANE Tube HIFI 300B Original Factory Matched Pair for Vacuum Tube Amplifier HI

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 K

.............................. 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

About service warranty:
The electronic tubes operated by our store are all brand-new high-quality genuine products of the original factory. We offer a 15-month warranty period from the date of purchase. Free replacement of any quality problems within one year. The factory strictly tests and matches all pipelines. Purchase 2 pieces = exact match. Buy 4 pieces = 4 pieces precision matching. We can match multiple tubes (four tubes and eight tubes) = the same parameters according to customer requirements. You can also provide pipeline parameters based on the customer. We will find the same pipeline for you. As long as there is a need, we can serve you until you are satisfied.

About Packaging: We use multi-layer Pearl cotton and bubble bags. Shockproof reinforced packaging. This ensures the safe arrival of the product.