This product is obsolete/discontinued and no further stocks are available. Please see alternatives in the category links above.
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.
SpecificationsInput Voltage | 15V ac centre tapped transformer (not included) |
Current Consumption | 70mA |
Input Impedance | 47K Ohm |
Output Impedance | 47K Ohm |
Frequency Response | 20 - 20,000 Hz (-3dB) |
Filter Slope | 6dB/octave |
THD | 0.001% @ 1KHz - 0.005% @ 10KHz (for 0.3 - 1V RMS input) |
SN Ratio | 86dB relative to 5mV input. |
Board Dimensions | 83x91mm |
Enclosure | WCAH2851 |
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 |
Documentation | Connection Diagram LM833 IC Datasheet |