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Looks like a LM386 audio amplifier, but component values are missing.
Please explain the term mix minus in an audio network (livewire protocol) , and also explain what is mean by IFB ,and how it generate in an audio network(livewire) ? Iam raising these question because Iam working in a technical department of a FM studio station
Hello everyone, I am in my final semester of an electronics technology program and I am building an electronic stethoscope for my project. I found a circuit (by audioguru) and modified it a bit. I incorporated more digital aspects so that more analysis can take place. Anyways, I build my prototype and right now I seem to have a large feedback. My s
this circuit what is the purpose of using audio transformer ?
I designed an electret microphone (single ended) amplifier (recommended by the chip itself) which works well, only if the speaker is very far to the source. The reason is that audio feedback is worse when mic and speaker is close to each other. The attached design below is an input to the codec (WM8991 if you're aware). But if any of you can help f
Hello I am trying to build a tube receiver shown here I have built the circuit but I would like to convert the audio amplifier so that it uses some kind of feedback from the output back to it's input so that it greatly amplifies the audio signal. Reflex receivers do that but I would like to split
My requirements are for a mono audio amplifier IC capable of a peak to peak output swing of 4.2V into 8ohms, operating off a single 5V rail (frequency range is about 100Hz- 1kHz) - but an IC that doesn't apply a crazy voltage gain. Just about all output ICs I've tried apply a voltage gain of 20! this is problematic because I'm restricted
Hi everyone! Fig. 1 shows a class A audio amplifier with transformer output. The amplifier in Fig. 2 is much similar to Fig. 1 but it drives headphones rather than a speaker and there is only one emitter follower stage and no interstage transformer, unlike in Fig. 1. Both circuits show two frequency compensation capacitors (C2 and C6 as in Fi
Any clue how it works?
what a circuit need to cancel the feedback, input signal ... but does it need a memory or something like this, does anyone can help me understanding anti feedback circuit thanks !!
hi, i'm looking for a professional 12V,150Ah Car Battery Charger Circuit with the following built-in options:(part of my Instant 220VAC Source (inverter)) a. Automatic BOOST, FLOAT & TRICKLE charging b. Charge Monitoring and Overcharge Protection c. Battery Terminal low voltage monitor w/audio feedback d. Deep discharge protection e. Curr
I wanna implement an audio pre-opamp (20kHz signal BW) which has resistive feedback, driving a 6MHz Switch-capacitor loading. To make it's output settling fast enough, the opamp seems have to reach a near 100MHz GBW. Since it's time-continuous working and has resistive feedback, usually it was implemented as a two stage architecture. (...)
One trick is at the transmitter to have a demodulator identical to the one at the receiver. This demodulator output is used for feedback to the audio stages.
Dear noiseless, It is very simple. when a cap is used for DC block of a preceeding stage,people tend to use a simple resistive or a diode based voltage divider to rebias the next stage. I have used this implementation for a power amplifier for an audio circuit. the only limitation is the area, power consumption. Hence go for transistors whic
Hi electronics_kumar, Let me show you some links as an addition to Eric and Kral very good contribution. See in general theory Some info for the audio frequency range: but in case of using both the collector and emitter
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FET's like BF245 can be used as audio attenuator for signals up to 1Vpp. Distortion can be about 20%. FET is not linear resistor at Vds=0. Linearity for Vds<0 decreases as Vgs approaches 0V.
Here is a Power Amolifier that i designed for My use. Q1Q2 are BC577 Q3 Q4 BD139 Q5 BD140 Q6 2n5296 Q7 2n6107 Po 30W