8W + 8W Western Electric Master Series EL34B tube single-end fever amplifier amplifier super linear connection method

Condition:New
Type:Logic ICs
Model Number:EL34B
Dissipation Power:3-4W

Machine parameters:


Power: 8W + 8w (super linear connection)





Bandwidth: 30HZ ----------------------- 38KHZ (-1DB)





Impedance: Input impedance 100K. Output impedance: 0-4-8





Signal to noise ratio: 90DB





Weight: 17kg





Three-dimensional: 420 * 230 * 180 (mm)





Speaking of EL34 single-ended type A tube amplifier, in the eyes of some enthusiasts, it was a killer, low-grade goods could not be used in the equipment of Daya Hall. In fact, this understanding is wrong. The Italian phonology is EL34 tube single-ended tube Success! The reason is unknown whether the market determines the grade of the product or the level of the manufacturer has created the market.
We, as a professional manufacturer designing and exporting bull bile machines, think that EL34 is a rare good tube, the first price is cheap. The second power is not small, the third: good driving is easy to produce good sound, but the shortcomings still exist, depending on how the designer controls. Because the first is high internal resistance, even the triode connection distortion and internal resistance are far beyond the fever index, and the power is very small at the level of 3-4W!
We use a super-linear connection method, taking into account both power and distortion. Of course, we still rely on the large loop to improve the index. When it comes to the feedback of the large loop, we must evaluate the distortion and gain of the pre-stage tube. The theoretical output voltage amplitude is sufficient, because the voltage amplitude and distortion returned by the EL34 cancel the input voltage amplitude, making the first stage work in a region with poor linearity. Where does the good sound come from? Of course, the same is true for the two-stage common cathode circuit.
A good-sounding EL34 single-ended machine is also inseparable from a high-quality output transformer. The EL34 single-ended amplifier designed by our company uses a high-level U-tube 6J8P (6SJ7) direct-coupled 6N8P (6SN7) cathode follower to drive the EL34b. All indicators are very high standards! Excellent! From a commercial perspective, this machine is not profitable, but from the brand effect and our bulk purchasing advantages, we are willing to invest so! The power cow is a British Red Bull Golden Sands film 114 * 60 (260w), which guarantees ample follow-up energy. The air feel is very good, the harmonics are rich, and the low-end design is dry and straight. The output cow is 86 * 45 British sands, which is very complicated and time-consuming manual shed. This advantage can reduce the distribution of the PCB board. The sound of the capacitor is dull and dim. resistance.

List of complete electronic tubes: Noble Voice EL34b * 2, Shuguang 6J8P (J) * 2, Shuguang 6n8p * 2, Guiguang 5Z2P (j) * 2