Preamplifier for magnetic phono cartridges

Preamplifier for magnetic phono cartridges
This amplifier circuit is intended to be added to the preamplifier which does not have a phono input. Such a phono input is required for normal record players with a dynamic pick-up, of which millions are still around. Moreover, the amplifier does not only bring the output of the pick-up to line level, it also adds the correction to the frequency response (according to RIAA requirements). (more…)