***SONICA 1 - Headphone Amplifier with TPA6120***
Sonica 1 is a rebirth of an older design of mine. A few years back I designed a small PCB for a headphone amplifier, based on BurrBrown (TI)TPA6120A2 chip amplifier. I made a power supply on a piece of test PCB with a toroidal transformer. The end result was quite pleasing and I have used it since then as my main source for music at home, whenever...
One channel of a moving magnet phono cartridge preamp with very accurate conformance to the RIAA qualisation curve, based on the design shown in Fig 16 of:
but with the addition of R10 and C8 to remove severe HF peaking in V(BUF) at >100kHz due to capacitive loading of U1 by the input of the bandpass filter implemented by U3.
Fork the projec...