RIAA Stereo Pre-Amplifier Electronic Kit for MD Phono Pick-Ups
Low-noise RIAA/phono preamplifier is required for playing vinyl records and ensures that the signal is amplified and equalized, allowing it to be properly processed and passed as a line-level signal to the audio amplifier...Electronics > Circuit Boards & Components > Printed Circuit Boards > Development BoardsWSAH2573WSAH2573WSAH2573541032973312410.74Quasar Electronics Limitedhttps://quasarelectronics.co.uk/Item/velleman-k2573-stereo-pre-amplifier-md-pick-ups-kit
This Stereo RIAA Pre-Amplifier is a SELF-ASSEMBLY electronic kit for MD phono pick-ups.
The circuit uses a TL072 Low-Noise JFET-Input Operational Amplifier IC. These devices feature high slew rates, low-input bias and offset currents, and low offset-voltage temperature coefficient. The low harmonic distortion and low noise make the TL07x series ideally suited for high-fidelity and audio pre-amplifier applications.
The kit makes a good platform for upgrading. For example, you could change the TL072 supplied to a Burr Brown OPA2134 and make other component value tweaks for improved performance.