Can anyone tell me what is the easiest way to amplify sound. Ex-a transistor amp ? Any info would help

 

Buy an audio amplifer?

(Ps. The quality of answers on this forum is directly proportional to the quality of your question)

 

There are ICs that do most of the work for you, possibly similar to the mystery chip in your other thread. The lm386 seems to be a very popular choice, though I have no personal experience with it. Its datasheet includes lots of example circuits, plus there are countless sources online of complete breakout board amp circuits based on the lm386 if you'd rather go that way.

 

I asked a similar question a few months ago in this thread: http://forum.allaboutcircuits.com/threads/simple-pc-audio-amplifier-circuit.109732/

It is possible to build a functional speaker without an IC using transistors, but the sound quality will vary directly with the complexity of the circuit. You can build an amplifier circuit with just one or two transistors, which will offer extremely poor sound quality. Alternatively, you can build a more complex circuit with lots of semiconductor components, but it's much simpler to use an IC like the LM386. So unless sound quality isn't important to you or you want to build a complex circuit to learn the details of how amplifier circuits work, I'd suggest the same thing @ebeowulf17 did.

 

Do you just need to amplify voltage or also drive a speaker?

 

Can anyone tell me what is the easiest way to amplify sound.

Use a megaphone?

 

Easiest way? lm386.
Next easiest way? Opamp with a push-pull transistor stage in the feedback loop.
Balls to the wall way? Three stage(LTP, VA, Output) transistor amplifier, read "Designing Audio Power Amplifiers" by Bob Cordell. (Highly recommended read btw).

 

Easiest way, buy an amplifier. Plug you signal into the " input" and speakers to the "speakers" jacks. Big range of power and quality options available. What is the source of your sound? Microphone, guitar pickup, phonograph, MP3 player, ...

Each will have special requirements for amplifier - make sure to pick one that is intended for your source.

 

Easiest way, buy an amplifier. Plug you signal into the " input" and speakers to the "speakers" jacks. Big range of power and quality options available. What is the source of your sound? Microphone, guitar pickup, phonograph, MP3 player, ...

Each will have special requirements for amplifier - make sure to pick one that is intended for your source.

Easiest way, buy an amplifier online, pay online, choosing the home delivery, stay at home and drink tea to waiting for the amplifier coming ...

 

Use a megaphone?

Needs power or without power?

 

Needs power or without power?

For a quickie - I just use an amplified PC speaker.

Usually my signal source wants a high impedance, so I just add a JFET source follower - the volume pot is usually about 4k7, so that can be used as the source load resistor, needing to add only 2 components; the JFET and its gate leak resistor............Oh!... and a DC blocking capacitor.

 

Could you give us a little less information?

 

Could you give us a little less information?

You stick a few bits in the back an' it makes it go louder.

 

Hello,

Have a look here:
http://educypedia.karadimov.info/electronics/circuitsamplifiers.htm

Bertus

 

For a quickie - I just use an amplified PC speaker.

Usually my signal source wants a high impedance, so I just add a JFET source follower - the volume pot is usually about 4k7, so that can be used as the source load resistor, needing to add only 2 components; the JFET and its gate leak resistor............Oh!... and a DC blocking capacitor.

One resistor adds totem pole driver using two bjts.

 

How about a string and two paper cups.

 

Pam8403 module

Order from me get it in a week or less

 

How about a string and two paper cups.

Paper cups tend to be a bit fragile - most people use baked bean tins, and transmit rude noises.

 

Why do I feel that this train (or is it thread?) is derailing very fast?

 

Why do I feel that this train (or is it thread?) is derailing very fast?

It's what I call a, "drive by" posting.
Fire a question. Provide no details. Never respond again.