Record Players & Turntables
Cartridge Wiring
Headshell WiringShure Cartridge Wiring
Ortofon Cartridge Wiring
Audio Technica Headshell and Cartridge Wiring
Turntable Repair
Numark TT1650 Slows Down FaultSony PS-LX40P
Technics SL-1200MK2
Technics SL-J1
Cartridge and Stylus Reference
Shure V15V Series Stylus EquivalentShure Cartridge Stylus Compatibility
Sony HP/PS Series Phono Cartridges and Styli
Vintage Sapphire and Diamond Styli Reference
Cartridge Specification
Audio TechnicaSony Cartridges 1982
Shure Vintage Cartridges
Shure V15 Type III
RIAA Phono Preamplifiers
RIAA Preamplifier using NJM4558 / JRC4558 Op AmpRIAA Phono Preamplifier using LF353N
Active RIAA Calculator
RIAA Preamplifier Utilising BC547
RIAA Utilising TA7325 Option 1
RIAA Utilising TA7325 Option 2
Baxandall
Bass and Tone ProjectBaxandall Circuit Design
Baxandall Calculator
Tone Control Circuit
Practical Circuit Example
Bass and Tone Calculator
RIAA Preamp Project DIY - Magnetic Cartridges
Part 1: RIAA Preamp Circuit DesignPart 2: Baxandall Bass and Treble Control
Part 3: Split Rail Power Supply
Part 4: RIAA Preamp Project
Ceramic Cartridge
Universal Ceramic Cartridge and StylusPreamp Circuit using MOSFET
9-V Power Supply
Preamplifier Case
Quadraphonic (Matrix)
CBS SQ SystemPart 1: Decoder
Part 2: Logic Control
Part 3: Gain Control
Part 4: 20V Power Supply
Part 5: Completed Build
Quadraphonic SQ Decoder Using MOSFET Transistors
Quadraphonic (Discrete)
CD-4Passive Quadraphonic
Neil 4 Channel ResolverFilters
Scratch Filter Using LM387Scratch Filter Using TL071