Hi I'm new to here. I have a 10" dual cone subwoofer I'd like to make an amp for my guitar with. I wish to use the little gem circuit with tone, treble and reverb added. Should I just connect the little gem circuit and the reverb and treble effects circuits together or should I connect their power source wires to the SPST switch?
Quote from: luke on January 15, 2008, 01:42:49 PM
Hi I'm new to here. I have a 10" dual cone subwoofer I'd like to make an amp for my guitar with. I wish to use the little gem circuit with tone, treble and reverb added. Should I just connect the little gem circuit and the reverb and treble effects circuits together or should I connect their power source wires to the SPST switch?
Looking for a little more info!
First, your subwoofer - is it a very high powered one? If so, the 1 Watt max of the Little Gem or the Ruby may be insufficient to provide good sound level out of the speaker.
Given that it gives decent sound pressure with 1 Watt maximum input, to continue:
The little gem is an excellent little amplifier, but to add things to it I suggest you go with the "Ruby". Then, you have a consistent impedance your guitar looks into, and can parallel your tone potentiometer (and cap) with the volume potentiometer.
Attached is a Idea from what information I can glean from your description - not certain how practical putting a reverb stompbox permanently installed. To be aware that building a digital reverb is quite complex, you can build a spring reverb using Craig Anderton's circuit. Check the Schematics section.
Anyway, here is my first run at an idea to help you out!
I use a stand alone reverb in my own setup.
I found this link over at DIY Stompboxes. I agree that a stand alone unit would be more versitile than trying to put it in a little amp. That way you could use your reverb on whatever you wanted.
http://www.profusionplc.com/pro/gex/prodGen.html?prdtyp=reverb# (http://www.profusionplc.com/pro/gex/prodGen.html?prdtyp=reverb#)