Luohe where the Crown amplifier monopoly wholesale Henan Jiaming Yang 1503 +71780 +75 www.69139139.com 1399 +229 +631 Milan sun, Zheng * City Market Building 5, Unit 2, 208 tube amp (tube amp) circuit is simpler than the transistor machine easy to make, and good music replay more expertise, especially in the emotional expression Danji rise again very popular with enthusiasts of all ages. The the Danji most important feature is the gall taste, your tube amp welding also has a warm, mellow, smooth, sweet taste of bile? If not, sound bottom and transistor machine almost, or than transistors machine also hard, but also dry, or homemade gall preamp, buffer access playback system, playback system sound changes are not "immediate impact", as the media said, you should measure the operating point of the tube, is working in the best condition, or will be carried out seriously and carefully adjusted. The only tubes work in top working condition, in order to play a line and each bile duct charm achieve satisfactory playback effect. The operating point is not a good tune Danji addition to poor sound performance, as well as volume light and distortion phenomenon. An amplifier sound quality is good or bad, the impact of factors are many, but in the end decided at the production level. Enthusiasts in the production of equipment, are generally based on the hands of the accumulation of the bile duct and components, and then choose the best line in accordance with the line of the crew to find what you want, welding, component specifications, although the numerical requirements on the circuit diagram or less, but because components of the qualifying session, the length of the alignment, welding quality, or other differences, such as the B + voltage level will affect the playback performance, so welding a tube amp, not necessarily taste thick bile 's. No bile taste does not matter, as long as the appropriate, reasonable adjustments, parity, so that the amplifier at all levels of the bile duct work in the best condition, will be able to achieve the requirements of the playback. Danji the content of the adjustment work, in addition to reducing noise to an acceptable level and the replacement the grades or capacity of the input and output coupling capacitors, to change tone outside, the most important the adjusted screen pressure, the screen flow and the negative pressure of the gate, so that bile duct work in the right point so that emit good sound playback system, and this is where some of the article we talk about less or with a very simple two-description with later, or is "without any adjustment" can work. If the bile ducts do not enter the work state, and back to the name brand capacitors, bile taste will not come out. Adjust amplifier Tube, according to the data provided in the tube guides, as the basis of the circuit, no tube manual, to respect the parameter values ??given in the circuit diagram of the bile duct or additional data. The working point of the transistor is determined by the screen pressure and a gate negative pressure adjustable gate, the screen after the pressure determining the negative pressure to adjust the working point, the beam pipe or pentode screen after the pressure is increased to a certain extent, a curtain gate voltage transformer will have a greater impact in the operating point, and therefore adjustable the curtain gate voltage and gate negative pressure to the selected operating point. Reduce the Danji noise and replacement coupling capacitance adjustment tone, some articles have explained it, this article will not repeat them here on the adjustment of the bile duct point to talk about the experience. Jiaming Yang 1503 +71780 +75 www.69139139.com 1399 +229 +631 Milan sun, Zheng * City Market Building 5, Unit 2, 208