Many students will often encounter such a problem when they do a courage. According to the circuit provided by others, the machine who works out is sometimes not listening? Initially I was on the circuit and data provided by the 789, the sound is not very good, and the friend is not as good as it is, the voice is not as good as I originally 6p3P. I have pushed 805. I said that I want to change it back. I think, I just don't have a call, I can't explain that this electric circuit is not good. I invite them to reconstit the voice again; the signal is best not to add the premium in the premium, direct use of CD Signal, this can adjust the neutralized sound, which is beneficial to match the front-level or finished prior rate of different lines in the future to match the sound of the system, help friends do not understand this when they don't understand the system sound, and I will pay me early. The 1834-level push 805 written by the GEC is not paying attention to this, and it is certainly not good to listen to the machine, so the line has changed again. Speaking of the sound, first to understand the sound direction of the system, the CD machine, the forefrillans, speakers, wires, etc. They are transparent, cold, warm or bloated, (that is, if the equipment is matched, if other The device also knows the sound of the existing equipment. After choosing a matching equipment, there is a spectra in the heart, and then determine which direction is tune. If you are a personalist, you tap your voice, do not have to say what others say, if you want to take you more than the burnt friend to praise, I suggest that you make the machine to make neutrality, or according to the system of others And listen to the tone. Another one to remind you, there is no perfect machine, there is no perfect circuit, don't think anyone can adjust the machine perfect, otherwise you will play; everyone's listening is different, you can't put Everyone's ear is unified, so the sound is only a lot of money today, so the sound will feel fun. The experience of leaving experience is a small farmers. Only when you use your experience to communicate this is fun, you have fun, you can play a variety of ways to make a fever more vital. Pradering machine should not be superstitious, because it is something that is actually experienced with ears, because people's physiological conditions are different, people's ear responder the sensitivity of a certain frequency band, just like people to see something, you will feel no Teenage girls are pure and beautiful, and he feels that the girl who does makes makeup well, and we must consider some problems before the sound, (1), some aspects when the sound can not fully believe in the instrument, the instrument can be used as a reference , To believe that your ears, the sound of the instrument can be saved, sometimes caught compliment, single-ended, the single-ended is small, especially some of the distortion of the beneficial heard, the adjustment needs to experience and understand You will find a lot of amazing and not understanding, not the theoretical can be solved, (there is hurt to the theoretical prawns to delete this paragraph); (2), the electronic management is not in the process of engineering, the same model of different manufacturers The tube will make it discrete, although the same type of pipe has a unified standard work point, but the pipes produced by each manufacturer have a small difference, plus the ages for a long time, (especially the second-hand tube). The standard work point of the pipe in linear is not fixed. It is its best work point. If you replace the pipes of different manufacturers, there will be different voices. If you can't eat it, you will be able to listen, believe the best. The sound is its best work point; (3), generally not bad according to the standard worker point, how to understand how to listen to another thing, (the metrics of the finished market is generally high However, there is a stone champion of thousands of pastel, but the sound, the gallbladder is poor, and there is no adjustment element. Individual thinks that the courage to make a stone hooky is a boldness. So the installation It is best to make a standard work point, then tighten when the sound is called, and it is necessary to sound. Only the circuit is simple, in order to improve the design of excessive design, the circuit complicates the circuit, it will only just (5), as small as possible, the transistor, the biliary flow can be good, in the case of signal-to-noise ratio control, the filament exchange is not straight, and the DC is not grounded without grounding. Improve sound; (6), resistance can be connected in series, and use the resistance made with the same brand in series, and the current is different from the error between each resistance, the sound will change, the capacitor can be parallel. Not in series, the capacitance capacity of parallel cannot be large, less than 0.01uf, otherwise the sound will also change; (7), the change of the wire is better to change the money to change the pipe, the sound improvement is more obvious, etc. When you change, you will change the wire; (8), choose the pipe and circuit, first according to existing equipment before the installation, understand its characteristics and the electronic tube used in the circuit after you prefer the circuit, otherwise it is difficult The taste you want, the tube is the foundation of the sound. If you want the circuit to change the sound of the pipe itself, it is very difficult, each tube has its own voice, high internal damper (and little sideware) The sound is thick, soft, slow speed, good gallbladder, low internal resistance (and high yet) transparent, hard, fast speed, gallbladder, giving a classmate like some sex Reference; neutral piping is: General high internal resistance to push the internal resistance to promote the internal resistance, (depending on the promotion of high internal resistance, the actual system is found to be used as a push effect) Since 805 is high internal damping, the low internal damping of 6C33C or 1834 (6080) is good. At 805 circuit, the three-stage tube is used to push the tube than four, five level management, and the three-stage tube is more Pulse, more ravine, the first level uses the five-level tube, the taste of the five-level tube, elegant; (nine), the sound can also replace the resistance, capacitance to change the sound, or adjust the working voltage and working current to come After changing the sound, the machine is loud, the sound is thick, the transparency is not high, and the resistance or capacitance of the cold sound can be adjusted. After the machine is sound, the sound is cold and thin, the use of warm sound Make the proportion of the transparent (exceptional element exception), when the working voltage and operating current of the tube are used, the decrease in the transparetion in a certain range will not be obvious; the students are angled When you want to remember: adjust the voltage or lower the current to move the sound to cold, transparent, thin, courage to decline, reverse the low voltage or increase the current, make the sound to soft, thick, gallbladder, turn over It will also affect the pulsation, how to adjust your favorite; I have a habit when I installed the power resistance, I bought the standard resistance, I used the upper and lower resistance of the standard resistance, used for the sound, and the result is installed. There will be many resistors, although waste but value; appropriate to increase the screen-level resistance will increase the gain, the sound becomes thinner, the working stability is deteriorated, and the appropriate reduction of the screen-level resistance will reduce the gain sound will be more neutression. And the tube work is more stable, and the e-stage resistance is also appropriate; when it is increased or decreased, it should be appropriate, otherwise the object must be reversed; personal experience: Improving the sound to improve the sound first is in the screen level, followed by the 阴 级, then It is the gate, and the supplement capacitor is first first. It is the first level, and then the power filter and the ingredent, each brand of supplement improves the sound to each other. Others think it is not necessarily your meaning. Be sure to compare with your familiar supplements, determine which direction will improve and decide whether to change. After the dog is installed, the first conversation is made. This is not enough, the new and the cow needs to be sathemed. After the normal start is turned on, it will be launched after a month. After a system is completed, if you change, if you change A system listening, the sound will change, change the system if dissatisfaction is also a sound, just like wearing shoes, there is a shoe number, it is impossible to call everyone to wear a unified shoe code; tube aging, you can put the filament The voltage increases the zero point of several volts, increase the electronic emission of the tube, continue to take a good voice before it is dying, judge the new and old menstruation of the 805 can observe the spring of the two hanging filaments, the pipe is long, the filament is long, two The spring will naturally relax (spring length), the shorter two springs, the more the tube is, and the other direct heat tubes can be identified in this method (see Figure 1 arrow). Duty principle: The first level voltage amplification is the basis of the whole machine to ensure transparent, neutral, medium performance to ensure the original flavor of the sound, must not have personality, personality can be adjusted in the last few levels, the latter After the level is adjusted, it will be fine-tuning the first level. This is the idea and step of my transfer. There are many questions after getting the 789 circuit, and there are many unreasonable places, especially the 6080 e-level poured 805, no ski resistor, how to release the 805 grid electronic? Practice is the standard of testing truth, according to (Figure 2), there is no problem in technology, and the attack can be made (C1 should use 100UF electrolysis), but the sound is not as good as possible, and the personality of 805 is extremely in the extreme and cannot be adjusted. Change (such as increasing the screen-level voltage, down working current, reducing output cattle primary impedance will be good, but the taste will be much better), such as adding a capacitor feedback on the 阴 级 电 电, but listening And passivity cannot have a greater improvement, press (Figure 3) to remove 1834 (6080) pushed 阴 stage resistor, hearing and transparent will improve, high-tone is more texture; (Figure 3) This circuit seems to Unreasonable, maybe it is this "unreasonable" gate-free electron nowhere to change the voice personality of 805, I hope that more students can suddenly feel, design this seemingly unreasonable but sound Circuit. Press (Fig. 2) to make a power of about 40W, but the power of 805 is wealth, press (Figure 3) to lose the power of ten watts, and the power to change the sound quality is worth it, compromise (Fig. 3) The R10 is not grounded at the gate stage B pushed at 1834 second three-stage tube, which is used to adjust the intermediate output voltage so that the 805 can make power, and the translation is not There will be too much drop. 805 Tuning: In the previous multi-debug comparison, 805 works in the low voltage high-current sound better than the sound of high voltage small current (when turning off the light, you can see the screen level micro-red ", 805 itself It is coarse, soft and warm pipe, and the high voltage small current will make the sound and transparent, the sound is rationally, but because it is the left feature tube, the sound is particularly personality, and the high voltage small current is found in multiple experiments. The sound is not resistant to hears, the taste is poor; the output of cattle has a decision on the sound quality, the tone is determined. Most people only pay attention to the high frequency of the cattle, and ignore the wire diameters used in the winding in the winding. These changes in the tone determine the effect, the transformation of the primary impedance cannot be converted with the method of changing the secondary impedance, so that the turbulent ratio of the cow is in the design, making the sound change inexpensive, the primary impedance tap should Really in primary, it is necessary to design a reasonable design of the number of taps during the primary, and each tap should be assigned to which layer, the most important tap is to be the most reasonable, and the output is output. Cattle, while other adjustable tips should be as reasonable; the primary in high impedance is warm and thick, the taste is good, especially in the vocal part, but the speed is slow, and the high frequency is a bit after the speed is reduced. Turning, the gallbladder is different, but the speed is a little higher than the high tone texture, the 805 output cattle primary winding line diameter is thick, the high frequency is textured, the linear sound is soft, the high frequency is fine (the line diameter current cannot be At the end of the 805 static working current) How to pay for the reference; there will be some damage when the old iron core is disassemble, but must guarantee the flatness of the slot gap, so that the sound of the magnetic field is good, if necessary The core is machined, reducing the magnetic circuit increases magnetic efficiency (see Figure 4). As shown in (Fig. 3), the feedback windings (eXpertetetric feedback), which are not grounded to the output cow secondary or output cattle, such as the Extracence of the C point, or the output of cattle, is extended (the output cow is preferably A separate feedback winding); photo 2 line 805 e-level plus capacitor will make system sounds more balance, due to thickness, thickness of the 805 sound, this capacitor I use a film capacitor, or use ROE's 220UF electrolysis, such as the last one Off is determined that the best working status has still been lacking in the promotion level. 1834 Zoom in tuning with the push-level: Change R9 can change the push voltage of 1834 阴 级 805, increase the resistance to make the extent push voltage decrease, the sound proportion is deteriorated, and the reduction resistance will increase the 阴 阴 推 电However, the standard pushing voltage from 805 is too far (so that the operating current of 805 is increased, 805 screen-shaped red), so that the work of 805 is more unstable, never affects the sound quality and stable consideration of R9 at 350V time selection 20K (eg When adding a negative pressure at the 1834 grid B, R9 is taken with 15K, 805 eclipate resistance R13 10Ω), and the 1834 screen level voltage 177V is optimum, and the first level of 1834 is reduced, which makes this The level gain is reduced, the work is more stable, and the working current will be improved. The sound quality will be slightly improved, and the reduction in the R7 is not easy to promote, if the sound is thin, the sound is not good, it can be on the 阴 级 resistance R8 With a 100uF, the electrolysis is not large, and the C3 uses JS 0.1uf capacitor sound neutrality, C4 uses TCC capacitance to transpare the bass, the female voice is beautiful, but the male voice will be young Some, C4 changes the balance of sound by adjusting C4 according to the size of the unit. EF37 voltage amplification tuning: When the A point 200V voltage is very soft, in order to improve the first level gain, we can take a 0.01-0.015uf small capacitor on the 阴 tyne resistor R3, this capacitor cannot be too large, otherwise it will Impact the balance and transpressivity of the system, such as a 100UF electrolysis makes the intermediate frequency too full, the sound is balanced, and the secondary pull from the output cattle is given to E, the size of the feedback resistance is based on the balance of sound. To determine; increase the resistance of R4 to increase the high frequency measure, the treble is thinner, but the intermediate frequency will decrease as the resistance increase, the anti-central frequency increase, generally value between 200K-1M, determine it according to its own preference High, medium, low frequency in the system balance, R2 value is adjusted between 82-100K when R4 is above 390K, C7 should be used with electrolysis, and the practice found that electrolysis will affect balance and transparent, immerse The capacitance is preferably between 2-10uF, and when the voltage of the A points increases, the speed of the system also increases in the direction of the thin, and the sound is adjusted, and the best is optimal. State, the sound of this level can be adjusted from four aspects: (1), the voltage of point A, (2), change the 阴 rating resistance value R3, (3), R3 and feedback capacitance, (4) Change the resistance of R4, which aspect is easy to meet the requirements of the adjustment, and the other is the main, and the other is the second, in order to ensure that the transparent C3 is not easy to increase, 0.1uf is just (can be small), if you want to increase the thickness of the system Do not do article in this capacitor, from other aspects, such as: increasing the tube shade current, adjusting the 阴 级 电 反 反 电 电 电, increase the primary impedance of the output cattle, starting from the last level, first level first level forward. Total: Because of the discrete, all voltages, current adjustments to be adjusted on the standard state of the pipe, do not exceed too much, output cattleConfiguration, decisive role when thaw color, to wind up to about 1K, and more than about 1k, the upper and lower, which is used for the conveying. This tap is very large, and the magnetic gap of the fine-tuning output cow will also change the sound (do not magnetize Saturation); in the machine, the imported Tulong line is permeable, high frequency quality, use the west electric cloth bag line sound smooth, high frequency modification, high frequency quality decline but slim; this circuit is only suitable for pure power Because the 阴 rating is pushed 805 cathode outputter to input more driving peaks than the output voltage, the direct drive is directly driven by the heart, the sound is not satisfactory, and there must be a preamplifier, various details will be One is displayed one by one. The conveying is a culture. According to the understanding and appreciation of everyone, the sound that meets yourself or others like.
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