Very Basic Preamp Circuit

[electron monkey]

This is more of a request, I've been looking around for some simple preamp designs, something I can make up on a breadboard in a few minutes, basic as basic can be, only a handful of components.  Resistors, caps and a transistor or 2.  XLR connection or TRS, even TS compatible.  Option for adding in a volume control, then a tone control etc.

The main reason behind it is to understand the mathematics involved which can then be expanded upon, I guess it's not so much a preamp, but more a booster to start off with, sound quality isn't the principle here, I think it would be good for a lot of novices to the physics side of things...

A simple schematic is all that is needed, everyone I find with google has some sort of mod or added circuits to it.  A good start schematic is much appreciated.  Values aren't even that important right now, I need to order more components soon anyway!

 

[lassoharp]

http://www.tkk.fi/Misc/Electronics/circuits/micamp.html


came up at top of list via google

 

[tmuikku]

Hi there!

this is also a very common source for starters
http://sound.westhost.com/

 

[electron monkey]

http://www.tkk.fi/Misc/Electronics/circuits/micamp.html


came up at top of list via google

I've seen that, I was thinking simpler, kind of like, a battery and a motor is a good way of explaining a car engine haha!

Only in these preamp terms.

 

[signalflow]

http://www.groupdiy.com/index.php?topic=39381.0

Page 2 has the etch file ready to go.

the THAT 1510 subs nicely for the INA127

-Casey

 

[PRR]

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