Brand Name:icchipcn.com
Condition:New
Type:Logic ICs
Model Number:EL34/6L6
New EL34/6L6 single ended amplifier
Configure:
1: Black: including a full set of electronic tubes: EL34 for power tubes
2: White: including a full set of electronic tubes: 6L6 for power tubes
? ? ? ? ? ? I know that many friends are worried about whether they want EL34 or 6L6. Don't worry, the power transformer is equipped with two groups of different voltages for EL34 and 6L6. First, buy what you want. If you want to play with another one, you can use a screwdriver to jump the high-voltage line. If you want to ask me what is the difference between the two, in fact, they are not very different,. First of all, the power is 6L6: 7.5W, EL34: 8W (why not 10W? I don't like rough and distorted sound, so I don't do 10W). EL34 is transparent, bright and fresh. The 6L6 is just a little softer. Both of them are popular tubes with a long history, very good.
Product specifications:
Voltage amplification push tube: early Shuangguang6N8P/power tube: PSVANE EL34C, power rectifier tube: Linlai, 5U4G.
Power transformer: laminated paper, 105 * 60 precision winding, power 250W.
Output transformer: laminated paper, 86 * 40 precision winding, power 18W.
Power consumption of the whole machine: 100W.
Signal to noise ratio: 88DB has slight filament thermal noise close to the horn. Orderly routing and reasonable design
Noise voltage: 1MV
Input impedance: 100K
Output impedance: 4 Ω 8 Ω by default. If 16 Ω is required, please contact in advance.
Output power: 8 Ω 8 W per channel
Distortion: 1% 1w
Frequency response: 10HZ-20KHZ (- 1DB)
Power supply input: 220-240V
Overall size: length: 36.5CM * width: 23CM * height: 21CM
Operating Weight Net Weight: 15KG
Weight with package: 17-18KG
Package specification: length: 50CM * width: 30CM * height: 32CM
Standard configuration of the whole machine: EL34 * 2/6N8P * 2/5U4G * 1/hood * 1, instructions * 1, power cord * 1
? ? ? This product uses 6SN7 three-stage amplifier circuit, which is a very common mature circuit. There is no technology or secret in this product. 6SN7 is a very common double triode, which is used for two-stage voltage amplification to drive EL34, a pure Class A single ended amplification mode. Mono output power is 8W.
Here are the main materials:
? ? ? ? The transformer uses 27QG0.27MM, and the high-quality iron core CNC winding machine precisely arranges and winds each layer to connect tightly and stably, with low temperature rise and long service life. The coupling capacitor adopts film oil immersion mixed mode. ALPS27 blue case potentiometer made in Japan is used for signal input. The band switch also uses Japanese original ALPS. Stable quality and good sound are loved by enthusiasts. I didn't introduce many other materials. My friends who know me know that I will never be careless when making materials for products, and will not blindly stack materials to use expensive counterfeit components. Each product will match the original according to the sound characteristics, and also consider the temperature, interference, withstand voltage, and power internal resistance of the original in the circuit to optimize and improve. Gold plated tube base, stainless steel screw, pure copper gold plated RCA and terminal. The shell is made of 1.5MM thick iron plate, which is used for electrophoresis, powder spraying and drying at high temperature, and then spraying high temperature gray baking paint. The panel is processed by aluminum alloy CNC, and the full chamfering process does not scratch hands. The surface is sanded and anodized.
Product production process:
Although we are not a big brand, we are not a big company. But we will not be careless with every product. We will do enough, or even more.
It is the most basic to test and match the important originals of the product before production. During the production process, every part of the details should be meticulous. After the product is completed, it will be tested for waveform, balance, noise, distortion, high-power aging frequency scanning and audition. Ensure the consistency and quality of each machine.
Each machine is identical inside and outside, and each machine is welded firmly and neatly.
304 stainless steel screws/pure copper studs are used: since it is defined as a collector's version, the screws must not be sloppy. After 10 years, 20 years and 30 years, no rust can be seen on the screws.
Winding process of transformer: layer upon layer of pad paper, zigzag framework, CNC precision winding, vacuum impregnation. All passed: frequency response test/inductance test/waveform test/good things are not afraid of exposure. Peel it inside and outside to show you!!! It is normal that no matter how large the size of the power transformer choke is, it will produce temperature rise!
About the material of iron core (27JG130 is 0.27 pieces thick)
The difference between good and bad iron cores of power transformers is mainly determined by the intensity of magnetic induction, but there are usually several common mistakes:
1. The better the material of the iron core, the better the quality of the power supply：
The quality of a qualified transformer does not depend on whether the iron core material is good or bad. If the iron core with low magnetic induction strength is used, the magnetic induction strength of the iron core should be reduced in the design, which brings disadvantages, such as more copper wires are used, or the transformer is relatively large. For example, if a 150W power transformer uses H12 (non oriented single piece 0.35 thick) iron core, it may be 96 pieces with a stack thickness of 55mm, but if it is made of 27JG130 (commonly known as Z10 single piece 0.27mm thick) with better material, it only needs 96 pieces with a stack thickness of 50.
The conclusion is that the iron core with better material saves copper wire and iron core. Therefore, do not generalize the quality of transformer based on the quality of iron core.
2. Z11 iron core must be a high-grade iron core：
Z11 is the code of oriented iron core in the early 1980s and 1990s, represented by oriented iron core, with a sheet thickness of 0.35, which has been a long time ago, but there is no such iron core. There are also second-hand iron cores from some old transformers. As for the second-hand iron cores, due to the different disassembling processes and the same batch of iron cores are removed from numerous second-hand transformers of the same size, the consistency can not be achieved in terms of both appearance and index parameters, so there is no guarantee in terms of performance, so our store does not have such iron cores. It is also not recommended to use such cores.
About the temperature of transformer in use
The temperature of the power transformer when it is used is closely related to the ambient temperature, load depth, overload operation, etc. The temperature rise of the transformer in our shop is about 10-30 ℃ when it is not overloaded.
About the tube blue light:
? ? ? ?The blue light is excited by the atoms in Nickel by the impact of electric ions on the plate. When the high-speed electric ions of Barium Strontium impact the atoms in Nickel, the electric ions in the Nickel atom will be knocked off from time to time. At this time, the atoms in Nickel will lose the electric ions, resulting in a positive and negative imbalance. It is necessary to absorb the lost electric ions in the adjacent electrons to restore the balance. When this happens, blue light will be produced. This romantic Blu ray will not affect 300B audio and sound effects.
? ? ? ?The appearance of blue light in the electron tube is the electron glow of the electron emitted by the cathode of the electron tube under vacuum conditions. The cathode emission ability of the new tube is strong, and the glow is even more normal. Not all of them.
