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Help?! Toy keyboard with guitar input

Corey thompson

Aug 8, 2015
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I have a toy radio shack ck-480 keyboard and it has AN8053N amp in it to two little speakers. I can't find a schematic I'm just trying to figure out where I should solder in the input for a guitar. Any help will be much appreciated.
 

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Martaine2005

May 12, 2015
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The output voltage of magnetic pickups varies between 100 mV rms to over 1 V rms for some of the higher output types. A hard strum on all 6 guitar strings can produce a larger output voltage swing, typically peak voltages of +/− 5 volts for single coil pickups and +/− 10 volt peaks on dual coil pickups.

That was stolen from Wiki..
Do you know what pickups you have?

Martin
 

Corey thompson

Aug 8, 2015
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The're gonna be somewhere in the middle of the two. I was thinking it may be to low and I could just use a overdrive pedal. *edit* 240 mV rms
 

Martaine2005

May 12, 2015
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Your over drive pedal will hit distortion levels. For obvious reasons.
Are they mains powered or battery?
 

Corey thompson

Aug 8, 2015
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The overdrive pedals? They can run on either operate at 9v 30 ma or so. I also don't mind distortion so much could be cool getting a trashy square way sound from it.
 

Martaine2005

May 12, 2015
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I don't think this will work. You can certainly try it. But the on-board chip is for electronic instruments, not electric instruments like a guitar.
The LM386 chip seems to be the choice for guitar amps.
That schematic is here.

Martin
 
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