PSU

3 in 1 Power Supply

To achieve high performance and good sound, all kits should be fed by an adequate power supply. As described in the LM1875 and TDA7293/94 projects the power supply for op amps is critical. High PSRR and low noise is a must.

The board shown bellow combines 3 functions:

  1. Power chip power supply
  2. Op amps power supply
  3. Speaker delay and DC protection

All you need  is an adequate transformer or switching mode power supply.

 

3 in 1 power supply – $79.99

low noise power supply and speaker DC protection
Low noise power supply and speaker DC protection Kit