Matched Pair Psvane 300B-T Mark II Vacuum Tube Treasure Tubes (2pcs) 300B-TII
Item Details
After Psvane-T has been launched out successfully for two years, the Psvane-T Mark Ⅱ finally comes out.
Due to use of the new materials, design style and manufacturing process, the performance has been significantly improved based on maintaining the original characteristics of Psvane tube.
Descriptions:
1. By virtue of its smart design of power turbo, the electron current density within the vacuum tube reaches up to the maximum value so that the energy, dynamic performance and saturation of voice can be greatly improved.
2. Due to the use of Teflon as its base material, the Psvane Mark Ⅱbecomes more stable and durable.
3. The method of aluminum base oxidization is used for coloring to make sure it will never change color or discolor.
4. It adopts the completely new gold plated base pin so that the contact performance at the connection part can be much better, thus the loss of small-signal can be reduced to the minimum level.
5. The use of carbon crystal technology has greatly improved the stability of electrical property under the condition of working or even ultimate limit within the vacuum tube.
Features:
300B-TII
Department directly heated cathode in power transistor
Used for Class A1 amplifier. Adaptation in the audio amplifier for output power requirements in 10W occasions.
Filament heating
Uf (DC) .................. 5V
If (DC) ............... 1.2A
Static parameters
Ua ........................ 300V
-Ug ..................... 60V
Ia ........................ 60mA
Gm ........................ 5.5mA / V
ri ........................ 0.7 KΩ
u ........................ 3.85
Pout ..................... 6.6W
Limit rating
Anode voltage ............... 480V
The anodic power dissipation ......... 40W
Cathode current
Self-bias .................. 100 mA
Fixed bias ............... 70 mA
Electrode capacitance
Input capacitance ............... 9PF
Output capacitor ............... 4.3PF
The cross road capacitance ............... 15PF
Typical operating parameters
Audio amplifier
Class A1 amplifier:
Ua-Ug Ia RL Pout 2nd
V V mA Ω W db
200 42 30 2000 3 20
200 39 40 2500 2.6 26
250 55 30 2000 4.9 18
250 52 40 3000 4.0 26
250 50 50 2500 4.4 26
250 48 60 2000 4.7 26
250 48 60 2700 4.1 30
250 45 80 1500 5.0 26
300 65 40 2500 6.7 20
300 63 50 2000 7.2 21
300 63 50 3000 6.1 26
300 61 60 2400 6.6 26
300 58 80 1700 7.5 26
350 76 50 3600 7.8 26
350 74 60 2000 10.2 21
350 74 60 3000 8.3 26
350 74 60 4000 7.0 30
350 71 80 2200 9.6 26
400 91 40 5000 8.4 26
400 89 50 1000 11.5 21
400 89 50 4000 9.4 25
400 87 60 3500 10.5 26
400 84 80 2500 12.5 25
450 104 40 6000 9.5 26
450 102 50 5000 10.7
If you want matched quad, please contact us. All tubes will be factory matched and tested in original package before shipping. We offer one year guaranty. It will be insured when shipped.
Packaged includes:
Matched pair PSVANE 300B-T Mark ⅡVacuum Tube（2pcs）
