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hellooo....... I 've a problem bout the description in my circuit-microphone preamplifier why a certain mic preamp circuit needs a LED?how about if this LED is ignored?isn't affected its function of my circuit? then, i want to know about a repeater..isn't repeater concept is used in audio mixer?and what the function it suppose to?isn't repeater very important? Before this you have says about Fuzz circuit. what its means? (related to distortion) thank you sir :)

hello... ;D i want to ask bout the clipping which is one of distortion

again... forgot to ask..what d difference between mixer that I've done with a mixer involve a local oscillator n so on?

1. What’s meaning of this word? - Stray pickup -Dc biasing levels 2. I’m simply done a mic preamp, mixer and power amplifier. So, what’s the function of my mixer? Is just combining from various inputs to mono/stereo output, right? No other special in this circuit if I do like that, ????

latest one..i use 8ohms, 0.25W for supply 12V...unfortunately, my voice not too clear and more noise occurs..how should i faced with this prob?isn't i must change my speaker-as u said that it will damage the speaker itself-?for ur infomation, i use the own stage for mic, and power amplifier...this prob occur when i combine between stage of mic, mixer, preamp and pwr amp...tone controls not included..isn't has d other way to solve this prob?

hello.. where i can get info about speaker 8ohm,0.25W??or the datasheet??

hello..i've a quest to ask 1) according to the circuit that i attach before(poweramp.gif), what d function of LED on that circuit? 2) what is the best or simple word to explain bout audio mixer n equalizer?as i know, mixer is a shaping of sound-other than that, i don't know what to describe clearly bout it..sometimes, i think that nothing special bout my projet cz i juz do for mixer n equalizer only...plz give me a clearly bout that-i nvr seen n know d function of audio mixer

my mistake again..sorry for this error about this question- Q: What’s the problem with my bass control circuit (as attached) because the output for 3dB cutoff frequency that I get with hardware implementation is not same as my calculation? Suppose I get around 750 Hz at 3 dB but in hardware the value is more that; around 8 kHz

hello.. my mistake.. Q: What’s the problem with my bass control circuit (as attached) because the output for 3dB cutoff frequency that I get with hardware implementation is not same as my calculation? Suppose I get around 750 Hz at 3 dB but in hardware the value is more that; around 8 kHz

hello.. i'm not sure whether the picture has done attched or not..so i post a same question n picture Q: What’s the problem with my bass control circuit (as attached) because the output for 3dB cutoff frequency that I get with hardware implementation is not same as my calculation? Suppose I get around 750 Hz at 3 dB but in hardware the value is more that; around 8 kHz

1. From the picture I’ve attached (power amp), can other transistor types used except TIP31A? 2. What’s the problem with my bass control circuit (as attached) because the output for 3dB cutoff frequency that I get with hardware implementation is not same as my calculation? Suppose I get around 750 Hz at 3 dB but in hardware the value is more that; around 8 kHz

hello.. how about this circuit..isn't funnction as a microphone and speaker? suppose I want to design with a simple circuit so that my project not too big/load

Sir… 1. I still confuse about what I done. So, where I should put a speaker to my project? Is it I need another circuit? Or it impossible to design the whole things from mic to speaker? 2. I don’t know whether the speaker is the point or not, but I want check my project whether its function or not when I use a microphone at input. So, you have an idea? 3. Is it correct if I said that mic is also a level input? If it is true, from the figure 2 (preamp.jpg) that I attach to you, how about the function mic (as shown)? 4. Can you give the overall picture about audio mixer from the input level to speaker? I need the description in stage of circuit so that easy I understand how it is built up. Let say (as example) level input ...to ....mixer.... to.... tone control.... to... power amp... to ...speaker 5. what the different between channel and level input?isn't same? four input channel means four input levels? 6. isn't fine the power amp that I find?(as attach)

Hello… Thanks you for your response audioguru.. I want to show another circuit which am I can apply in my microphone. I not try yet whether it’s function or not but I not understand certain part in the circuit. (1)What’s mean the input with V1, V2, V3, and V4? What’s kind of input we use? (2) Then, at RV7, volume out- is it means a speaker? (3) How I can connect a mic? Like the figure or must also connect to supply?

Hello… Thanks you for your response. I want to show another circuit which am I can apply in my microphone. I not try yet whether it’s function or not but I not understand certain part in the circuit. (1)What’s mean the input with V1, V2, V3, and V4? What’s kind of input we use? (2) Then, at RV7, volume out- is it means a speaker? (3) How I can connect a mic? Like the figure or must also connect to supply?