Positive LDO based on TPS7A4701 low noise - 4 μVrms drop in replacement for old LM78xx series.

Negative LDO based on TPS7A3301 low noise - 16 μVRMS drop in replacement for old LM79xx series.

This adapter lets you solder two single op-amps in SOIC-8 packages and use them as one dual op-amp that plugs into a DIP-8 (dual) socket.

This PCB is a compact low-noise linear power supply intended for audio applications (DACs, clocks, analog output stages, I/V converters, preamps, active filters, etc.). The main goal is to obtain a very clean DC rail with low 100/120 Hz hum and reduced high-frequency “rectifier dirt” coming from the bridge.

SOIC-8 to DIP-8 Op-Amp Adapter ( 1 : 1 ) in manual breakable panel.

The goal of this project is to improve the linearity of an R-2R DAC based on the PCM58 chip.

This project is a DIY split-rail (±) linear power supply with CRC filter designed for the Musical Fidelity A1 amplifier – a true Class A design with high quiescent current demand. Could be used for any audio power amp with high current demand with split-rail (±).

This small PCB lets you replace a single silicon “block” Graetz bridge rectifier with four external Schottky diodes. The goal is a cleaner power supply with less high-frequency (HF) rectifier switching noise. I used it in my JLH / Hood 1969 power amplifier working in class A (high current) with good result for better sound.

The capacitance multiplier reduces noise and transformer ripple in audiophile power amplifiers based on a classic ± power supply for the output stage. It was designed for a Musical Fidelity A1 amplifier (and compatible clones available on AliExpress) to eliminate power supply hum and achieve clean power delivery to the power output stage. It is capable of operating with high quiescent current in Class A power amplifiers.