PSVANE 300B-L UK300B Vacuum UK Design - Kit de amplificador valvulado de áudio Hi-Fi para substituição da série 300B (válvulas eletrônicas) - Conjunto de quatro válvulas casadas para montagem DIY.

PSVANE UK Design 300B-L 300BL Vacuum Tube Upgrade 300B 300BT 300BN 4300B 300BG 7300B 300BC 300B-98 for HIFI Audio Valve Electronic Tube Amplifier Kit DIY Factory Genuine Precision Tested and Matched Quad UK Design 300BL has focused on restoring the purest British voice since the beginning of its design. Together with the British design team, we spent nearly two years carefully searching for the structural drawings, material composition, process standards and sound correction characteristics of the British vacuum tube in its heyday. Every detail was not missed, and even the representative works of each brand in that year were dissected, and precipitated in the 300BL work: both GEC's delicate and juicy medium and high frequency voice, There is also the incomparable medium frequency texture and density of the Big Shield. At the same time, the literary and artistic temperament and cultural connotation of the British Voice, which were once irreplaceable, have also been fully inherited. If you have the chance to listen, this may be the 300B vacuum tube with music taste that you have heard. Although it is not expensive, her temperament will definitely make you unforgettable. 300BL It is a direct-heated cathode medium-power triode for Class A1 amplification. In the audio amplifier, it is suitable for 10W output power. Limit rating Anode voltage: 480V Dissipated power of anode............ 40W Cathode current Self Bias.............................. 100 mA Fixed bias voltage 70 mA Interpole capacitance Input capacitance.............................. 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.............................. three point eight five 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 parameter 450--100--96.5--60