Picture of the project:
R1 = 22K
R2 = 680R
R3 = 22K
R4 = 1R-1w
D1 = 1N4001
D2 = 1N4001
C1 = 1uf-25V
C2 = 22uF-25V
C3 = 100nF-63V
C4 = 100nF-63V
C5 = 100uF-25V
C6 = 100uF-25V
C7 = 220nF-63V
IC = TDA2030
If it does not work:
- Check your work for possible dry joints, bridges across adjacent tracks or soldering flux residues that usually cause problems.
- Check again all the external connections to and from the circuit to see if there is a mistake there.
- See that there are no components missing or inserted in the wrong places.
- Make sure that all the polarized components have been soldered the right way round.
- Make sure the supply has the correct voltage and is connected the right way round to your circuit.
- Check your project for faulty or damaged components.
- Supply voltage = ±18Vdc/3A symmetrical (see text)
- Current consumption = 3A maximum
- Input impedance = 500K Ohms
- Input sensitivity = 250 mV
- Signal to noise ratio = 80 dB
- Frequency response = 20 - 20,000 Hz ± 1 dB
- Distortion = 0.5 % maximum
- Load impedance = 4 - 8 ohm