looking for the simplest solid amp

[digi01]

I am a novice at solid based power amp.the only once diy experience is diy a 2x30W classA amp with my uncle in 1992(my uncle work on all parts design and assembly,I work on hand-made pcb board using FeCl3 and a Oil pencil)
I want a simplest design,then I can work out it all by myself.any help are welcome and appreciative.

ciao
Zang

[Stocker]

The simplest design is a single transistor and a couple of resistors...

sound quality may be lacking.

try looking to the passdiy website and have a look at the Zen amplifier.

[Amblifier]

Hi,

Is there a type of amplifier you prefer? Class A or Class AB, FET or BJT? Output Power?

Greetings

[digi01]

hi all,I am sorry for delay.just come back from holiday.
I do not mind the type of amplifier,classA,classC or classAB is all right.I want a simplest amp output 2x30W power to feed coda7.


thanks
Zang

[Upupa Epops]

Be ambicious, Zang...remember, that in this century chinese man will be in the Moon.... ( and he can't do it with " simplest " rocket... )

[digi01]

I am just curiously how a simplest going...

because the complicated building will make me fun and challenger.
the simplest building too.


Zang

[tlf9999]

you can try one of nelson's designs without the CCS or X-configuration. usually they are nothing more than a mosfet, plus a few transistors.

Sound quality should be good for a small powerred application. If you want to go a little bit louder, you may want to switch into class AB then there are tons of designs to go after, but I like ESP's P3A, in either an EF or quasi output configuration.

[CornelisJ]

ESP's Project 3A is one of the simplest designs you can think of. It is a class AB power amplifier. Resistors R17, R18 and R19 can be left out.

[PMA]

I have got a simpler one:

http://sound.westhost.com/project83.htm

originally

http://www.pha.inecnet.cz/macura/follower_e.html

[tlf9999]

Originally posted by PMA
I have got a simpler one:

http://sound.westhost.com/project83.htm

that requires a pre-amp, which if combined is no simpler than a jlh. You may also try the PLH or the new cascoding amp from Nelson.

here is my entry. It outputs about 7v peak on 8ohm. R5/R6 are those little 12v xenon lamps - I actually used a peanut tube socket to house those little "tubes".

You cannot get simpler than this, :0

You can improve power output with a CCS as load but that messes up the simplicity which appears to be your desire here.