2A3 2A3B 2A3C push-pull tube amplifier power amplifier fixed bias Teflon output cattle Japanese Furukawa Teflon silver wire 6H8C 6C5P

This machine is a three-dimensional thick copper rod for manual shed.intersecting line(The plane parallel line that is not the PCB "shed" board is neither parallel NORdisjointtheSTEREO space connection) set up a shed, which can make full use of 3D. The connection between the three-dimensional space parts in the chassis is short, and the circuitous connection is few, small distribution capacitance between parts mutual interference minimum heat dissipation good sound time-consuming and troublesome hook welding process......120V+120V。2A3 direct heating tube, low internal resistance，The screen voltage of good sound is 300V due to fixed bias voltage (the wire diameter of the copper wire used for the real high-voltage wire package is0.44The output of 400 mA current can completely ensure the bass high power output is not soft feet) output power 15W.fixed biasThe straight Heat Pipe 2A3 push-pull machine with low internal resistance has a correct sound and a damping coefficient greater than 10. It has strong control over the sound box, high power, good dynamic performance, wide sound field, high pitch, medium pitch and sound resistance, the bass has deep dive, high resolution, rich details and great momentum, which is incomparable to the push-pull playing machine of the side heat electronic tube. The screen pressure of this machine is 300V, and the negative bias voltage is about -62V. Because 2A3 power tube is not because power tube 2A3 has no cathode resistance and cathode electrolytic capacitance.... The sound dyed by him is small and restores the truth, and the speed is fast..... The output of the whole machine is 15W +15W. 4 Special audio sound of Lin Lai 2A3B (or 400 yuan for compensation for 4 Lin Lai 2A3C, at the same timeEquipped with upgraded high-configuration output transformer)

Two Soviet 6H8C (American model 6SN7 British model CV181, Chinese model 6N8P) do long tail inversion. Two Dawning dynamic single transistors 6C5P (UK model L63 or CV1067, US model 6J5GT) are used as preamplifiers. . . . . Power transformer 114X60.96X50, the choke is 66 x 35... Power 15W +15W output 8-4-0 0-4-8 two signal inputs two square VU level meters (swing with output power) 23kg