RIAA phono amplifier - Circuitos electrónicos

https://circuits-projects.blogspot.com/2012/10/clever-rain-alarm.html

Build A Stereo Headphone Amplifier - It's based on a single IC and can be used with RIAA (turntable) preamp described in our March 2002 issue (or anything else) In March, we told you how we rescued an old turntable and fitted it with a self-powered RIAA preamplifier so it could be used with modern hifi amplifiers. Here's the promised second part of the story: a matching headphone amplifier so you can enjoy the fantastic black plastic in perfect peace and privacy!.......

http://archive.siliconchip.com.au/cms/A_30588/article.html

https://amplifiercircuit.net/preamplifier-for-magnetic-phono-cartridges.html

https://schematics-rosa.blogspot.com.es/2007/09/audio-circuits-power-amplifiers.html

https://schematics-rosa.blogspot.com/search/label/Audio Circuits%3A Power Amplifiers

https://tominapanel.blogspot.com/2013/04/10-watt-linear-amplifier-circuit.html

http://www.4qdtec.com/preamp.html

An RIAA Preamplifier For Magnetic Cartridges - Many modern amplifiers lack phono inputs. This preamplifier solves that problem. Did you want to build the Ultra-LD Amplifier described recently in SILICON CHIP? Are you put off because it does not have a preamplifier for a magnetic cartridge? Then don't be because this self-contained preamplifier has been designed to install under your turntable and give better performance than the RIAA preamp in most stereo amplifiers and receivers........

http://archive.siliconchip.com.au/cms/A_30616/article.html

https://bywiring.blogspot.com/2013/04/modular-phono-preamplifier.html

https://felicinwiring.blogspot.com/2013/04/preamp-stage-for-ceramic-phono.html

https://popcomponentpreamplifiers318.blogspot.com/2013/05/rolls-vp130-tube-phono-preamp.html

http://www.vadlyd.dk/English/RIAA_and_78_RPM_preamp.html

Pencil tube phono preamp

http://home.kpn.nl/a.van.waarde/id17.htm