Record Players & Turntables

Cartridge Wiring

Headshell Wiring
Shure Cartridge Wiring
Ortofon Cartridge Wiring
Audio Technica Headshell and Cartridge Wiring

Turntable Repair

Numark TT1650 Slows Down Fault

Equivalent Stylus

Shure V15V Series Stylus Equivalent
Shure Cartridge Stylus Compatibility

Vintage Cartridge Specification

Audio Technica

RIAA Phono Preamplifiers

RIAA Preamplifier using NJM4558 / JRC4558 Op Amp
RIAA Phono Preamplifier using LF353N
Active RIAA Calculator


Baxandall Circuit Design
Baxandall Calculator
Tone Control Circuit

RIAA Preamp Project DIY

Part 1: RIAA Preamp Circuit Design
Part 2: Baxandall Bass and Treble Control
Part 3: Split Rail Power Supply
Part 4: RIAA Preamp Project