#1
ok, i want to build an amp that will fit in my pocket - much like the smokey amp which i have just found out about. there are a few things i need to know first though.

i want the amp to be - small enough to fit in my pocket, light, reliable, simple to make and repair should the need arise and cheap to make, though not necessarily cheaper than the price of a practice amp - i am doing this for the experience and because of my interest in how amps are made.

first thing is first - can i use the speaker out of an old hi-fi? i live in a pub and we have millions of speakers lying around in the function room, and if i can use one - then we're doing well.

second question, are there any guides on how to make a very simple amp? im talking one battery, an input jack and a volume switch (though i may just use my guitar to control volume) and possibly a pre-amp for some gainy sounds.

third, if i add a larger battery than the usual 9v used in smokeys, will this kill the amp because theres too much power, give a different sound or will it increase battery life?

lastly, i have no idea about anything electrical and this is going to be done very roughly, but as something on my side i have access to a lot of tools, is this going to be possible to do with any degree of success.
#2
yeah, have a look round on the internet, there is plenty of schematics and layouts

runoffgroove.com are good, look for the ruby amp, and i think there are others, just have a look

yeah, its do-able, and using a 12v or something in a 9v circuit isn't a good idea, if its designed for 9v, use 9v
lol@u
#3
ah - so thats all with the battery thing then - if its a 9v circuit then i cant use bigger? that makes sense

like i said, when it comes to electronics i have no idea - i did electronics class as a compulsory subject for a few years at high school, but i didn't listen, so i dont understand anything about it. i remember doing some soldering tho

and is schematics like the guide to how to make an amp? ive seen them before, and i get the idea that it shows what goes where, or where the electric flows - but again, didn't pay attention when i should have done. if i got hold of a simple schematic, would that be enough to make it by?

o, and as to earthing - how do i earth something so that i dont die.
#4
you if your not the best at soldering, and want something more simple, look into the little gem. I made one into an old clock radio. The circuit is about half the size of the ruby. its like the ruby's little brother i guess... lol

but if you could geting the circuit small enough and a speaker small enough sure it could be done fairly easily. runoffgroove has a lot of cool more simple projects and some higher level ones too

aside from the runoffgroove schematic for the little gem. You can also use
http://www.flickr.com/photos/54804764@N00/401719542/
to help you to know what wires connect where for the speakers and pots. cant get to much more simple than that haha

I also added a spdt switch to kill the power so the battery is not constantly on. this was my first circuit i ever built, turned out great!
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Last edited by ICANSEEYOU7687 at Jun 19, 2008,
#5
Quote by ICANSEEYOU7687
you if your not the best at soldering, and want something more simple, look into the little gem. I made one into an old clock radio. The circuit is about half the size of the ruby. its like the ruby's little brother i guess... lol

but if you could geting the circuit small enough and a speaker small enough sure it could be done fairly easily. runoffgroove has a lot of cool more simple projects and some higher level ones too

aside from the runoffgroove schematic for the little gem. You can also use
http://www.flickr.com/photos/54804764@N00/401719542/
to help you to know what wires connect where for the speakers and pots. cant get to much more simple than that haha

I also added a spdt switch to kill the power so the battery is not constantly on. this was my first circuit i ever built, turned out great!


cool, i'll look into the little gem - i dont suppose anyone knows of any uk based parts suppliers - im going to look into it myself, but if anyone can recommend something then thats cool too
#8
http://store.guitarfetish.com/on25waguamdr.html

I'm not sure if you can put that seperate from your guitar our not, I think all you'd have to do is add an input jack where it would usually have the guitar wires going.
Runs off a 9 volt.
not too much soldering.
...
Please do not insinuate anything sexual from that.

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If your friends don't like your guitar, cover it in stickers and it'll be teh rawks!