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HOW TO BUILD A SIMPLEST AUDIO AMPLIFIER IWTH NO IC'S? Answered

HI! AS I AM A KID I WANT TO BUILD AN AUDIO AMPLIFIER WITH NO IC'S ONLY CAPACITOR DIODES AND RESISTOR I HAVE SOME TRANSISTORS ALSO  CAN I BUILD AN AUDIO AMPLIFICATION CIRCUIT WITH NO IC'S??
AS I AM ONLY 15 I DON'T HAVE  MUCH MONEY TO BUY THESE IC'S CAUSE MY FATHER IS NOT SUPPORTING MY INTEREST IN ELECYRONICS!

REGARD'S
SAMAD HAQUE

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rickharrisBest Answer (author)2012-10-07

A simple google search for transistor amplifier will give you a lot of results - Sites where the operation of the circuit is explained will be most use to you

http://www.eleccircuit.com/ideas-circuit-of-small-transistor-amplifiers/

google search

In actual fact if you stick to smaller amplifiers such as the LM386 are about the same price as you pay for the equivalent transistor.

Time perhaps to start to think of earning money to support your interests.

PS writing in all caps look like shouting.

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Jack A Lopez (author)rickharris2012-10-09

+1. That first link looks like it has some good circuits. I think this is the best answer to this question so far.

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fyborg (author)2016-11-16

near everybody have old electronics things that have dead, you will savage parts, test them, make boxes with cardboard and organizate all that free spares, I have begin that way whn I was 12 y.o., some 55 years ago and now if I get a computer power supply I get lots of spares from it and some more things, and the power supply enclosure is a box well ventilated and is able to be used for any kind of amplifier.

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ubdussamad (author)fyborg2016-11-17

yeah , yeah , Thank you very much sir , i have grown up a little and am digging in much more complex circuits now. It has been 4 years . But still thankyou very much for the help and support.

Regards,

Samad Haque

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iceng (author)2012-10-06

I'm laying out a PCB for a client starting this week. 
This board  has NO ICs,  NO Transistors and it is a 50W audio amp.

I'm over four times your age ........... What do you think ?

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Jack A Lopez (author)iceng2012-10-07

No ICs. No transistors. What else is there that could be used as a gain element? Vacuum tubes?

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rickharris (author)Jack A Lopez2012-10-10

Magnetic amplifier

Mechanical amplifier (unlikely I know)

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Jack A Lopez (author)rickharris2012-10-10

Yeah.  I guess there are a lot of ways to get gain.
http://en.wikipedia.org/wiki/Amplifier#Other_amplifier_types
But few of them are as cheap or ubiquitous as ICs and transistors.

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ubdussamad (author)Jack A Lopez2012-10-09

That's very funny ( Sound's to me! )
i got a bundle of transistor from a self completely destroyed papa's tv set top box but thery are MP 2222A an some other names!

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Jack A Lopez (author)ubdussamad2012-10-09

This link,
http://www.alltransistors.com/
is helpful for looking up unknown transistors.

I can't guarantee it will find every part number you give it, but it found MP2222A.

Somewhere around here there is probably an instructable on how to test bipolar junction transistors (BJTs), to figure out if they are NPN, PNP, and if they are working. Maybe here:
https://www.instructables.com/pages/search/search.jsp?q=transistor+test

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ubdussamad (author)Jack A Lopez2012-10-09

thank's
for your kind help this gives me some more knowlde as i am a begginer

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ubdussamad (author)Jack A Lopez2012-10-08

WELL I USE SAMPLES FROM COMPANIES TO BUILD ANYTHING CAUSE I AM A KID! AND I HAVE AN LM 358 IC.

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iceng (author)ubdussamad2012-10-08

Here is a simple triode amplifier.

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iceng (author)Jack A Lopez2012-10-07

Exactly, there is a resurgence into better sound ( as $ome people think )..

Now that Russia is manufacturing and delivers matched tranacoductance
Pentode pair sets for under half a "C" note.

Steampunk is now within my grasp ;-) 

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Re-design (author)2012-10-06

If all you can get for amplification are transistors then you have to find an amp schematic that you can get the parts for.

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