Is it still worth buying the Korg AX300G

Found for guitar amp cracks - To the electronics forum

1 - solder pest (what happened here and how do I proceed?) - solder pest (what happened here and how do I proceed?)
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  It's not mine, by the way guitar. It is first owned and has not been tinkered with. Originally it was occasionally used electrically and now it should be done again. To do this, it first has to work again. No battery was used for decades. The amplifier has been expanded and can now be repaired at your leisure.

The stories described in the Wikipedia article (what a novel!) Are ten years younger than that guitar.

Incidentally, the assembly is SMD-populated on both sides. On the other hand, there are still two TL062 in SO-8 and lots of chicken feed, mostly 0805 (pretty modern for '92). The site looks good too. A contamination of the opposite side through open plated-through holes and similar damage cannot be seen. ...

2 - Audio isolation amplifier with ADuM4190 - Audio isolation amplifier with ADuM4190 These boxes are usually placed in the audio line to the computer or mixer. The guitar comes directly to the amplifier. The active speakers also have lower input impedance than guitar amplifiers.
DI boxes to which you can directly send a guitar Plugs are very rare and when they are used to get the signal unprocessed (clean) into a mixer, which is rarely desired.

Your amplifier also simulates various others amplifier and loudspeakers (modeling). That doesn't help.
The hum loop does not arise on the way from the guitar to the amplifier.
So either on the USB line or on the audio path to the PC.

Unfortunately you do not answer any questions about this. ...

3 - Electric fence generator in the power grid - Electric fence generator in the power grid First of all, it should be determined whether the impulse is coming from the power supply or the instrument cable.

It tickers even if you have the guitar including management from amplifier peel off and then turn input and volume to max.? ...4 - microphone preamplifier. (UNIQUE) repair. - Microphone preamplifier. (UNIQUE) repair. 24-hour endurance test is running.
The part significantly lowers the noise level on my Fishman.
The micro level is raised cleanly and clearly.
The NEUMANN M592 with M62 capsule sounds for guitar easy
clean and brilliant. Despite its age, the microphone is for
guitar still a good choice.
The preamplifier supports the good properties of the
Condensers clearly.
The structure of this preamplifier is usable but not
optimal. The circuit boards are professionally routed.
An L146CB regulates the phantom power exactly.
The assembly is an impertinence
If you open it inappropriately, the phantom power supply wires will tear off
and the plugs of the micro-jacks are suspended in the air.
When assembling, nothing can be done without tweezers and fiddling.
I didn't want to change anything in the original wiring.
Despite everything: The SSM 2015 is a good part and many a musician's ear
prefers it to the SSM 2019. The LT 1115 should be in the same couch
A comparison of the parts is planned.
After 24 hours, "early failures" should actually be on order
ALSO => device plays.
And the best: The amplifier-IC's have the M ...5 - Understanding the basics using a simple circuit - Understanding the basics using a simple circuit Hello,

I'm starting a degree in electrical engineering in the winter semester of this year and wanted to do a little more preparation. I'm actually quite good at practical things; as an electric guitarist, I swing the soldering iron almost every day

I have some kind of booster now /amplifier for one guitar, The thing is probably very old and has not been built for a long time, and therefore it is nowhere to be found. So I found a circuit diagram and recreated the part (printing, etching, drilling and soldering components with circuit boards).
So far so good, it worked after several mass problems.
Since I am not as advanced in theory as I am in practice, and somehow I cannot find the beginning (such scripts for freshmen are not really easy to understand on their own), I thought I would try to understand this circuit . But I need some help.

A couple of things about the circuit: With IN, the input signal of the electrical pickup is simply soldered on, with OUT the cable that goes to the jack socket. So the booster is in the guitar.
At Gain_SW, an external switch is soldered using two cables, with which the ...6 - no display and sound - Korg effects device Device type: other
Defect: no display and sound
Manufacturer: Korg
Device type: Effects device
Measuring devices: multimeters

Hello, I'm new here and have a problem.

The problem relates to my Korg AX300G multi-effects unit.

Display lights up, but no display. No beep when one guitar plugs in and the AX300G on amplifier connects. The switches cannot be operated either, although the lighting is there.

There are two quartz components on the circuit board with the designation:

X1: 9.216 (3mm high & 1cm wide)


X2: 40,000 (3mm high & 1cm wide)

The problem has already been posted in another forum. The opinion there was that these two components had to be replaced. Unfortunately I have no idea what these parts are called or what the numbers mean. Have already looked at Google, but not really had any success.

Can you help?

Greetings ...
7 - Question about fuses and phase (s) - Question about fuses and phase (s) I'm not an Eli, but I know a little about NF technology.

Unfortunately, you have not yet answered the questions that were asked, especially the performance data of the devices to be connected.
I am assuming that you do not want / will not change anything in the electrical installation, you are concerned with how which existing circuits are used most sensibly.
It was previously mentioned that all three phases should be loaded as evenly as possible.

I would operate everything from the music on the same phase and, if possible, on the same socket. But that only applies to small consumers like mixing consoles, stop your recording stuff. If the floor kick effects are small power supplies, with which e.g. an effects device for the guitar is supplied, they are also connected there.
With the amplifiers it becomes more difficult, strongly dependent on the performance.
A small tube amplifier for them guitar or singing will probably be satisfied with 100 watts, you can connect that too.
PA can mean pretty much anything. The stuff draws electricity seriously, but already kilowatts amplifier Without a three-phase connection, it should be divided into at least two circuits.
Is it also trivia, rather a listening amplifier with a few watts, also at the ...8 - Defective - Hughes & Kettner Edition Tube Device type: other
Defect: Defect
Manufacturer: Hughes & Kettner
Device type: Edition Tube
Measuring devices: multimeters

I have the following problem with my all tube guitar amplifier.

It works as usual at first, but is very, very quiet regardless of the volume setting. So compared to when he was healed it was about 1/10 - 1/20. From a certain volume that I set, about 1/4 turned up potentiometer in the clean channel, the signal distorts terribly when I use the guitar very hard, so there is a high signal. The distortion no longer lingers guitar and is also louder than the guitar signal.
During the warranty period I had that amplifier once sent in for repairs because of a similar problem (I don't remember exactly, it was 10 years ago). The error description was I think cold soldering points on the tube socket. So the first thing I did was to renew it. Unfortunately it didn't work. Knock on the tubes during operation ...9 - Search for comparison type with 2SK433 and BA1035F - Search for comparison type with 2SK433 and BA1035F
Quote :
perl wrote on Oct 26, 2012 12:02 pm:

Quote: It seems as if the signal does not arrive at KLM-2358. If you have a PC bellowing cube, then try it as amplifier times from how far the signal comes.
The JFET has no voltage gain in this circuit. It only runs as an impedance converter.
Due to the voltage divider R14 / R16, only 2/3 of the input voltage comes out there.

The first opamp has a gain of 1000 and the second only runs as a comparator; there is a square wave at Pin7 even with small input signals.
Without a signal, the voltage there is undefined; it can be almost 0 as well as about + 4V.

When testing, always establish the ground connection first (the easiest way is to keep it) so that there are no potential differences in network-operated devices that are on signal lines ...

10 - Strange error on the network - Strange error on the network Could also be.
Ours is so well constructed that I only have to check it out every twelve years
... and I don't want to experiment with transformers that can roast me in the company.
Line transformers are okay, Tesla coils still work depending on their size, but MOTs is over for me

And the hum is much lower than 300Hz.
More like a hum that you hear when you hear an e-guitar at one amplifier connects and the line hangs electrically straight in the air.

...11 - Pöl mafia? - Pöl mafia? Humanity is stupid, and I'm just wondering what a "HiGain guitar amplifier" should be.

Do you mean a very common one amplifier for an electric guitar or what?

I recently built a HiGain microphone amplifier. Consists of a double OPV and odds and ends.
Got a lot of reinforcement ... ...12 - right channel defective / hardly any power - HiFi amplifier GRAETZ HSA 200 So it actually sounds like a distorted e-guitar/amplifier, only that the power / volume breaks away. ...13 - weird after repairs - weird after repairs But I can understand Mr.Ed.

AMP is the company name of a well-known (in these circles) manufacturer of plugs and plug contacts.
And you end up writing "Bass-Amp" yourself with just one capital letter. And for us, a bass is also one guitar.

And if people also stated that they insert an abbreviation for something, then life would be a lot easier here too.
For example, the sentence could look like this: "I have an amplifier here (hereinafter referred to as AMP) ...", and it would be clear.
But you could also just "amplifier" write.

The fault in the circuit is a bit tricky, that it is a defective electrolytic capacitor, I don't think so.
Do you have an oscilloscope at hand so that you can check whether the output stage is oscillating at a very high frequency?

Raficus ...14 - quiet and hums - HiFi amplifier Philips d 6550 Spare parts for D6550 from PHILIPSDevice type: amplifier
Defect: quiet and hums
Manufacturer: Philips
Device type: d 6550
Measuring devices: multimeters

Hello everybody,

I tried to convert an old portable Philips D 6550 to battery operation. Rectifier removed and fed in with a 12 V 44 Ah car battery. Now I only hear soft music that is drowned out by a lot of hum.
I previously tested the system in its pristine condition with 230 V operation. Everything was still going wonderfully. The system has three inputs Micro, guitar and AUX. All three no longer work properly.
Where could the problem be???
In any case, the voltage of the battery does not collapse under load. (still 12v) I plugged in and unplugged jack plugs several times, and tried different playback devices.

Thanks in advance for your tips ...15 - hums - Soundcraft Analog Echo Device type: other
Defect: hums
Manufacturer: Soundcraft
Device type: Analog Echo
Measuring devices: multimeters

Hello forum,
I hope I ended up right here.
I received an echo device, Soundcraft EM-006, used today. It is an analog echo, has two inputs, one for a microphone, one for e.g. an E-guitar. For these, it acts as a preamplifier and provides the original signal with echoes. Since the device is not an integrated amplifier, it has to be connected to e.g. a guitar amplifier with a jack cable.
Now to the problem.
The device not only provides the input signal with nice echoes, but also with a pathological hum. I already found out the following:

- The hum is also there when no instrument is connected, only the echo device is connected to the guitar amplifier.
- The humming can also be heard (but quieter) when I have not connected the jack cable, which goes to the guitar amplifier, to the output of the echo device, but rather hold it directly to the power cord of the device.

Hence my assumption that the problem comes from the power supply or power supply. Power supply removed ...16 - Dynacord Eminent 200 - Dynacord Eminent 200 Then I remember a little anecdote why I have collected so much equipment.
I was already on stage when I was 12, but until my father's death - I was 16 - I didn't have my own instrument, neither one guitar one of the organs that were sinfully expensive at the time. So I had to rely on borrowing an instrument from the bands we played "Einlage" with.
After moving to a distant city, I tried to join a band, unfortunately very problematic because none amplifier and no instrument.
From this I later drew my apprenticeship, if I found a musician good and wanted to have it, I also financed the instruments or whatever came up when necessary. When the person concerned left, I kept the instruments appropriately, even if they were defective. Through my childhood experience I became an instrument messie, I can't really throw anything away.
Now I'm not feeling so well anymore and that's why I want to repair the defective things, so I'll be happy when it goes off again. ...17 - Switching power supply 230AC to 10x9V DC, 100mA each possible? - Switching power supply 230AC to 10x9V DC, 100mA each possible? Hello forum members,

this is my first post - I have a question.

I play E-guitar and use effects devices. These effect devices have a power consumption of 10mA to 85mA. All devices require a 9V DC voltage. These are analog and digital effects devices.

I am currently using a switching power supply with 9V and 2000mA output. All effects are connected in parallel via daisy chains.

Now to the real problem: All effects are connected to ground once via the power supply and then again to each other via the patch cord. This inevitably results in hum loops, which then turn out nicely from mine amplifier sound.

In order to avoid that, I see the only possibility in realizing a mass separation via the power supply. Is this consideration correct so far?

Now I thought "Man, build a power supply yourself that will solve all your problems!"
There are switching power supplies on the market, but either they are far too expensive for my ...18 - Home Audio Bus again (1,2 sources, many sinks) - Home Audio Bus again (1,2 sources, many sinks) Thanks again!

@ D.
DI Box was exactly the keyword!
I know them, but only on the user side (I also have something with the E-guitar recorded)
And don't worry, I didn't see it as an attack

Can you give details? So what on which vein etc.?
What devices on the ends?


Quote: DonComi already understood what I meant.
well at least one
No fun, I see more and more clearly even if many terms are or were Bohemian villages (yes, I google and wiki by the way)

Still questions again

Quote: that with Ethernet sockets you usually have 2 sockets and should also be fully occupied.
The W ...19 - portable guitar amplifier - exchange of ideas - portable guitar amplifier - exchange of ideas Hello
I wanted to present my upcoming project and ask what you think of it and whether you have any tips or suggestions for improvement.

I want to build a stereo guitar amplifier.
It is based on a TDA8563q.A 12V lead gel battery (possibly also 2 in parallel) and a switched-mode power supply should be used as power supply, so that the part can be operated without a socket and with a socket.

I found the power supply at Pollin. There is one with 12V 8.5A; 24V 1A; and another couple of amps on 5V.
I would like to use the 24V line to charge the battery. As a charge controller, I thought of an L200, which limits the charging current to around 1A. I have a total of 3 batteries with 7.2Ah, which can withstand a charging current of up to 2.8A, so the 1A are suitable. Of course, undercharge protection also means that you can't rock the batteries to death. The 12V line then feeds the amp in mains operation and a switch (of course adequately dimensioned) then switches to battery operation.
I found toggling the switch as the best option because I couldn't think of anything else. After all, you can't connect the two power sources.

Some will certainly make the switching power supply a problem ...20 - DIY bass amplifier based on the circuit diagram of a Peavey TNT 100 from 1974 - DIY bass amplifier based on the circuit diagram of a Peavey TNT 100 from 1974 Hi,
I'm not sure if I got that right.
I have my e-guitar with the pickups to another amplifier set to achieve the 50Hz hum signal.
With that signal I went to the Peavey amplifier in and turned it up so loud that the feedback starts.

I measured primary 0.218V and secondary 0.430V.
Can this be?

The primary winding is 565 ohms.

A suitable replacement transistor should be the 2N3055. ...21 - HiFi amplifier amplifier with TDA2003 - HiFi amplifier amplifier with TDA2003 Hey guys!
With the help of the TDA 2003, I have a small audioamplifier for the guitar built. Since I didn't want to make a lot of effort, I just used the example circuit from the data sheet.
Look here:

When we did the amplifier then wanted to test a problem occurred and there was no sound.

I think my mistake is at the entrance.
On my mono jack plug socket, I connected the part that touches the tip of the jack plug to pin 1 of the component. The other part that touches the larger area at minus.

I also get upset when I press on the capacitor C4 and disconnect the jack socket from the minus, then another string of the guitar allude, then there are tones with a very high frequency, which also get higher depending on the height of the string.

Love Alex ...22 - SONS Mesa Boogie tube amplifier - SONS Mesa Boogie tube amplifier Well, regarding the power supply, this is really GOOD news

Short update:

During the lunch break I brought the good one into the office, opened it and checked it again with a colleague. Interesting appearances here ..

1. No humming when the power tubes are removed

2. Humming (including crackling) slowly increasing when you use the amplifier starts up with standby "On". Crackling was not noticeable after the warm-up time, as the humming probably drowned everything out homogeneously. When booting up with standby to "On", it was by no means homogeneous and interspersed with crackling.

3. WONDERFUL SELF-HEALING (: - |): I couldn't see him yet guitar test, but humming and crackling was gone after the third or fourth start-up. A still existing basic hum was also gone after the corresponding running time.

It's just as nice as it is, but I always view self-healing with a certain skepticism, especially if the source of the error is unknown ... Do you have plausible explanations for this? I still don't really want to believe that this state will stay that way ...

...23 - How do you make decisions (in this case purchase decision) - How do you make decisions (in this case purchase decision) Again I turn to this one
- mixed forum
- full of life experience,
because special forums don't get me any further.

Normally I don’t give up when I have to decide something for myself, but somehow I’ve never had such a hard time. Which school / study no problem. Which company I would start afterwards was also clear after sleeping over it once. With the problem now, however, I change my mind depending on the time of day.

I am about to buy a vehicle. I have defined my preferences and limits, after a long back and forth there are 2 vehicle types left.
Both vehicles offer a very high level of safety (ABS, ESP, slip control), comfort and sportiness (2.0 l engine).
That was important to me.

On the one hand, a Hyundai Coupé GK, built in 04/2005
On the other hand, a Mazda 3 - Kintaro Edition, BJ 10/2007

I don't really like comments like "shit Asians get a Passat" or something. As I said, my choice is relatively well-founded, I am just in a quandary between the two that I made from a shortlist of around 10, including many Germans. Furthermore, tuning is a matter of personal taste and is not the subject of this article ...24 - simplest guitar distortion ... but don't look through ;-( - simplest guitar distortion ... but don't look through ;-( Hello everybody,

please treat me graciously ... it was a long time ago when I started school physics (about 14 years).

First the circuit diagram: Image inserted

In principle a transistor stage with adjustable potentiometer.
What now irritates me a little:
A simple amplifier stage would be the basic circuit (in this case the induction output of the guitar pickup / alternating current) and the output circuit, so what to do with the amplifier go ...

-Why the capacitor on the guitar input? If I remember correctly (which I'm not assuming now) it only lets the charging current through and then blocks, right? What's the point? The discharge current then goes in the direction guitarwhich should result in a choppy sinusoid, right?
-what I cannot understand completely ... what is R1 doing there?!? Wouldn't he care if that guitar The progress "guitar/ Base "switches to minus, the juice of the battery as charging current of the capacitor into the guitar go?
-Question 3: What is the pair of diodes doing there?

... I know, except for the transistor, I didn't really understand much, but b ...25 - Solid state amplifier is noisy - Solid state amplifier is noisy Thank you for your answers.
I have the amplifier poorly described. It is a vocal mixer, so it is designed for the connection of microphones. Since there was no phantom power at that time, the inputs are very sensitive. guitar you can connect it and it sounds okay, a CD player is overdriven.

Here are a few photos

...26 - E-Bass AMP - E-Bass AMP The house brand from Thomann is actually not that bad, at least you always get something useful for little money. Logically, there won't be any high-performance speakers in a low-cost combo. Look around for better speakers and do not use the specified wattage as a comparison value (it should be on the amplifier be matched) but to the nominal sound pressure. There are huge differences. Otherwise you could be on amplifier "Tune" the power supply a little. Degrees in combos often have the same power supply circuits as in similar guitar amps from the same company. The capacitors in there are quite small and cannot absorb load peaks. At ner guitar It doesn't matter, it hardly produces anything like that, but there is still room for improvement in the bass. And finally there is the compressor / limiter that is actually mandatory for bass. With these points you should make your Vombo sound really nice. The money for a good speaker is by no means wasted because you can also get a new one amplifier would serve well. ...27 - DIY microphone preamplifier help - DIY microphone preamplifier help You always talk about level, but I talk about amplification, modern German gain.
Maybe you should explain what you really mean.

The gain is the ratio of output voltage / input voltage - no matter how high these voltages are.
When you get to a amplifier with a gain of 1000 (= 60dB) at the input 1µV, the output comes out at 1mV. If you apply 1mV, 1V comes out at the output.

But a level is a voltage value. This has nothing to do with any previous reinforcement.
The maximum output level of a preamplifier or effects device could be 1V, for example.
Where this 1V comes from, whether it is 1µV or 1mV at the input, or whether a little man with a ner guitar sitting in the box is not of interest at first.
Only that this device can no longer deliver. If you do try, this attempt is usually punished by deferring.
...28 - 18 electric guitars and amplifiers tested by Stiftung Warentest - 18 electric guitars and amplifiers tested by Stiftung Warentest LEISURE + TRAVEL
Electric guitar starter sets
Unpacked and rocked off

Rock stars generally have exciting lives, well-filled accounts, and loads of beautiful women. Or men too. There are three reasons to start a band. Ever since the success of Tokio Hotel, a generation of teenagers has been wondering why they aren't on stage themselves. Even if you don't get that far, you might have fun with one guitar. In the test: 18 sets of E-guitar, amplifier and extras. Price: around 100 to 300 euros. STIFTUNG WARENTEST online says whether the pocket money is worth it.
To the complete test »

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E-Mail: email (äht) (automatically edited due to the risk of spam)29 - Guitar amplifier: power / volume - Guitar amplifier: power / volume Hello,

I read the Wikibooks article on guitar amps _Ver% C3% A4rker, most of it was already known to me, but now to my question.

It is often discussed in guitar forums why guitar amplifiers sound louder than hi-fi or PA systems of the same power or why tube amps sound louder than transistor amps of the same power.

I've heard so many explanations about it that I don't know which one is true. I know I'm mixing up the three categories HiFi, guitar transistor, guitar tube and probably several components come together, but the authors of the respective texts only ever have one explanation ready. The fact that 10-fold amplification only causes twice the volume is known:

1) In the Wikibooks article, the whole thing is blamed on the non-linearity of both the amplifier and the performance-optimized reproduction of the loudspeakers. Linearity, which is necessary with HiFi, is not even desired here, since the guitar pick-ups themselves are not ...30 - speaker 5 ohms or 8 ohms? - speaker 5 ohms or 8 ohms? Hello,
since the original question now seems to be answered, I dare to ask another question:

I read the Wikibooks article on guitar amps _Ver% C3% A4rker, most of it was already known to me, but now to my question.

It is often discussed in guitar forums why guitar amplifiers sound louder than hi-fi or PA systems of the same power or why tube amps sound louder than transistor amps of the same power.

I've heard so many explanations about it that I don't know which one is true. I know that I am mixing up the three categories HiFi, guitar transistor, guitar tube and probably several components come together, but the authors of the respective texts only ever have one explanation ready The fact that 10-fold amplification only causes twice the volume is known:

1) In the Wikibooks article, the whole thing is blamed on the non-linearity of both the amplifier and the performance-optimized reproduction of the loudspeakers. Linearity, ...31 - Optocouplers for audio purposes - Optocouplers for audio purposes The idea is simple:
I would like to build a switch (according to the sketch). Unfortunately, I don't know of any pressure switches with 2 changeover switches.
Here's what I want to do

1. If I have the guitar at port 1, amplifier to connection 2 and an effects device (which changes the original signal strongly in the bypass) to 3 (IN) and 4 (Out), I can decouple this from the signal path)

2. Function as a toggle switch
One at port 1 guitar and at 2 and 3 each a different one amplifier. Or similarly one amplifier to 1 and one each guitar on 2 and 3.

Therefore stuck depending on.

Due to the lack of a switch, after the tips from you, I thought of an energy-saving alternative with CMOS, JFETs or bistable relays. This control must then be activated by means of a button switch or changeover contact. ...32 - build mini electric guitar amplifiers - build mini electric guitar amplifiers You have to click on the links e.g.
then you see all kinds of things amplifier Schematics (you have to click again).
You can forget about the reverb, unless you find a sound chip or a reverb spiral.

For your project I can send you e.g.
(the circuit diagram should also run at 12V)

or if you want something more:

alternatively, if you only have 6V available, for example, there is still one amplifier IC's that do that only bring 1W. (But it is still louder than an acoustic one guitar)

Greetings Peter

[This message was edited by: Peda on Aug 14, 2006 8:28 am] ...33 - tubes - tubes
I actually wanted a little one amplifier to build.
Only since there is one for them guitar should one with 4-5 watts not really help me that much.
Sure, room volume is easily possible, but it's not enough to hit a drum kit.
That's why I thought that you just switch a few tubes together to increase the output power to about 40 watts, I thought so.

I got the tubes from Pollin because there is a small selection at reasonable prices.
A Pl84 costs 3 € and has 12W. ...34 - 1 Kw or more amplifiers - 1 Kw or more amplifiers well, you're a little wrong ...

tube devices e.g. sound warmer and not as hard as transistors etc ... on an electric bass guitar, the bass speaker is mainly responsible for the sound of the guitar because on a board with a string over the pickup, ned can't sound a lot ...
With many bands you can see this when they play over a larger system, then the electric bass player places a microphone in front of his bass box ... and not because he doesn't know the cabling, but because the bass speaker sounds ...

So speakers and amplifier also play a role in special situations

greetings ...35 - Problems with the smallest things. - Problems with the smallest things. I'm happy if it works!
Doesn't want to take away the joy of handicrafts from anyone ...
However, a self-made tool stands or falls with you
reasonable and solid structure, of course
by itself, and certainly the circuit you have learned also makes sense if you should turn on low levels
want to trim ...
Without electronic switch of the casual noise and
Hardly anyone dares to work on a system anymore.
Yamaha's Rex 50 is no longer unaffordable ...
And whether it has to be a fuzz or an entrance
clean and the other cray is also a matter of taste,
doesn’t want to be a nosy note, but if you have found good settings on the amp ... WRITE DOWN ...
that saves nerdy discussions days later ...
At the end of a trial day, most of the regulators are there anyway
stop RIGHT
I know many who haun all of the tone controls from guitar and
make everything over amplifieryou have one less problem Volume is completely sufficient in connection with the pickup selection ... there are endless sound variations.
I wish you success...

Forget ...36 - NF output stage - NF output stage You have to cool it, of course;), I'll say without long detours, as long as you can attack the IC there is no danger for it - nevertheless it should not get warmer than that you can attack it - safe is safe

you can simply connect a poti at the entrance with which you can then weaken the input signal (volume control) and somoit the amplifier also less sensitive amchen, then it should also be with her guitar go away ...

@Kaira B
What do you mean exactly?

Today I'll try to drive a TDA7052 to its limits, think with it should look out a lot Glue on a small cooling cup and let's see what goes on

EDIT: it goes like crazy but it also gets just as hot, very difficult to keep cool;)

but the 1W from the data sheet can already be multiplied: D

[This message was modified from: 2SJ200 on Mar 13, 2004 17:35] ...37 - Guitar amplifier 20Watt - Guitar amplifier 20Watt Tach Kaira B !!!

So to clear any misunderstandings out of the way.

I've been playing e-guitar (You can follow up on everything, you just have to practice it!).

And secondly, I don't want the 20W on it - amplifier play.

I already have two:

1st chewed Marshall G80RCD
2. Self-made tube amplifier with 60W and a 4 * 12 box under it. (I can enclose the picture)

The small amplifier is intended for interceptors who do not want to spend so much money.

So I only need one clean channel (no overdrive).
A sound adjuster with bass, mids and highs.
A master.
and finally 20 watts output power at 8 ohms.
Good Marshall box is available.

MfG MEyER ...38 - Guitar Approval - Guitar Approval Hello!

does anyone happen to know why one guitar to a amplifier connected sounds relatively dull? Could this have something to do with input impedance that is too low (23k)?

Thanks for answers ...39 - Computer on guitar amplifier = terrible hum - Computer on guitar amplifier = terrible hum I tried connecting my audio output (unamplified) to the line-in of the guitar amplifier. As soon as I get the amplifier turn on it hums funny. At least so loud that listening to music is no longer fun.

If, as usual, Iguitar connect, sounds mine amplifier always good and without this hum. Even when the Disc-Man is connected, the sound is clear. He only goes on strike at the computer.

I suspect that the amplifier's input resistance is too small; But I am not sure. Can you help me how I can make it bigger without losing the shield of the audio cable? Or maybe you have a completely different solution to the problem? ...40 - Soundbox - Soundbox Hoi everyone!
So I want to make a beautiful one for myself, let's call it a soundbox!

I got an old box from a friend ...
she is about 1.50 m tall and has a large and a small plate

Now it was just rusty and rotten.
I rebuilt the box with scaffolding ..
My friend just told me that the box used to have to be powered by electricity, he said 180V

The box had 2 plugs at the back, both of which were connected together:

Then there were the two plates:

and a double coil:

My friend also said that the big plate only works when both are connected in series and something has to be bridged

Now I have all the time ...