Disclaimer

1. All schematics on this page are for information and educational purposes only. Commercial use is strictly prohibited.
2. I will not take any responsibility for any damage resulting from faulty schematics, improper construction or abuse (Reads: If you build it, you better know what you're doing).

 
 
 

 
 
 

Analog Synth

The biggest electronic project I ever did. Actually, I started in 1980 but couldn't make the pcbs then. Retried in 2000, and this time I didn't give up...

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Preamps

Discrete JFET Bass Preamp

My bass preamp. Perfect sound with three FETs (and some gimmicks).

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Schematic

 

 

Onboard JFET Preamp

Onboard bass or guitar preamp. FET based with two volume knobs and a one-knob bass/treble-boost/cut-mid-switch tone control.

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Schematic

 

 

Other Preamps I built:

These FET preamps are based on the well-known design by Don Tillman.
Here is my version of Don's Discrete Guitar Preamp. I use a 50k pot as a master volume instead of the fixed 51k resistor in the original. Good for P-Bass after the tone control.
Schematic
PCB
Components Layout
This is a preamp cable exactly like the original, except I added a mute switch for easy tuning and change of instruments.
 

 
 
 

 
 
 

Other Projects

Bass Amp with Cabinet

Building a bass amp from scratch. Will take some time.

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Schematic (soon)

 

 

Another Bass Amp

Had this 100W power amp lying around for years. Combined it with my JFET preamp.

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Schematic (soon)