This is the Simple Preamplifier and High to Low impedance Converter
Circuit Diagram. This circuit matches the very high impedance of ceramic
cartridges, unity gain, and low impedance output.
Preamplifier and High to Low impedance Converter Circuit Diagram
By `loading` the cartridge with a 2M2 input resistance, the cartridge characteristics are such as to quite closely compensate for the RIAA recording curve. The output from this preamp may be fed to a level pot for mixing.
