With the spread of CD players, many amplifiers and mini sound systems no longer have a phono input for a record deck. As a result, your expensive record collection has become unusable.
This problem can be solved by using this hi-fi quality stereo RIAA preamp. The circuit uses an LM833 IC that is well specified for the application and ensures low noise, very high sound quality and reliability.
The board requires a 15Vac centre tapped transformer (not supplied) and incorporates a bridge rectifier and smoothing capacitors.
Kit includes all board mounted components including a pair of high quality phono sockets along with solder for assembly.Specifications
|Input Voltage||15V ac centre tapped transformer (not included)|
|Input Impedance||47K Ohm|
|Output Impedance||47K Ohm|
|Frequency Response||20 - 20,000 Hz (-3dB)|
|THD||0.001% @ 1KHz - 0.005% @ 10KHz (for 0.3 - 1V RMS input)|
|SN Ratio||86dB relative to 5mV input.|
|Board Connections||Stereo RCA sockets for audio input and output, solder posts for power connections|
|Product Format||SELF-ASSEMBLY Electronic Kit (KT) Product Formats Info|
LM833 IC Datasheet