I got all the supplies to build a Little gem / ruby / fetzer amp, but i'm a little confused by the design and schematics.
I wired up a very simple version of the circut, using only the LM386, a single capacitor and a 9v, and wired it to a cheap strat.
At the output, I connected a small .5-1 watt 8ohm speaker. At the input, I connected the output from my pickups, spliced from right before it goes out to the normal 1/4 in guitar jack. I used a 100u capacitor, then tried a 220u.
When I tested it, the little speaker is completely unresponsive. I tried both inputs to the LM386, and tried grounding one of the inputs like another tutorial said to.
Basically nothing happened-- the amp popped a couple of times but the little speaker didn't make a sound (yes I know it works.)
The weirdest thing is that when i was messing with the capacitor (which is located between the 386s output and the speaker) a radio station started playing through my amp!!
I ACCIDENTALLY MADE A FREAKING RADIO!!!!!!
Could someone show me in a very basic and simple way how to wire, ground, and solder one of these sustainers AND MINI AMPS in relation to the guitar?
All of these pictures detail the driver -- which is the only thing I do understand.
I just need help with the amp and tapping into the guitar's electronics.
THANKS!!!
Also, is there anywhere to BUY a PREMADE fetzer-ruby (or either one separately) amp?
Psw's Sustainer Pickup/driver Pictorial
in Electronics Chat
Posted
First of all, thank you PSW for all the info!!
I got all the supplies to build a Little gem / ruby / fetzer amp, but i'm a little confused by the design and schematics.
I wired up a very simple version of the circut, using only the LM386, a single capacitor and a 9v, and wired it to a cheap strat.
At the output, I connected a small .5-1 watt 8ohm speaker. At the input, I connected the output from my pickups, spliced from right before it goes out to the normal 1/4 in guitar jack. I used a 100u capacitor, then tried a 220u.
When I tested it, the little speaker is completely unresponsive. I tried both inputs to the LM386, and tried grounding one of the inputs like another tutorial said to.
Basically nothing happened-- the amp popped a couple of times but the little speaker didn't make a sound (yes I know it works.)
The weirdest thing is that when i was messing with the capacitor (which is located between the 386s output and the speaker) a radio station started playing through my amp!!
I ACCIDENTALLY MADE A FREAKING RADIO!!!!!!
Could someone show me in a very basic and simple way how to wire, ground, and solder one of these sustainers AND MINI AMPS in relation to the guitar?
All of these pictures detail the driver -- which is the only thing I do understand.
I just need help with the amp and tapping into the guitar's electronics.
THANKS!!!
Also, is there anywhere to BUY a PREMADE fetzer-ruby (or either one separately) amp?