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Basic Split-Supply Preamp Circuits PUBLIC

Basic split-supply preamp circuits using op-amps.

by Kurtus | updated October 18, 2025

basic-preamp-circuits  

Dual-Polarity +-12VDC 100mA Supply PUBLIC

Regulated dual-polarity +-12VDC 100mA power-supply circuit.

by Kurtus | updated September 02, 2025

12v-dc-power-supply  

Single-Polarity +12V DC Power-Supply PUBLIC

Regulated single-polarity +12V DC power-supply.

by Kurtus | updated September 02, 2025

12v-dc-supply  

Dual-Polarity +-12VDC 150mA Supply PUBLIC

Regulated dual-polarity +-12V DC power-supply.

by Kurtus | updated September 02, 2025

12vdc-supply  

Selectable Single-Polarity Supplies PUBLIC

Two selectable-voltage power-supplies for op-amp circuits. One with +9V or +5V DC, and one with +12V or +9V or +6V DC.

by Kurtus | updated July 21, 2025

power-supply  

Single +9V Supply PUBLIC

Examples of +9V DC power-supplies.

by Kurtus | updated June 22, 2025

9v-power-supplies  

9V Power Supplies PUBLIC

by Kurtus | updated June 03, 2025