IC TDA7294 120 Watt Audio Power Amplifier Circuit

IC TDA7294 120 Watt Audio Power Amplifier Circuit

Amplifer with IC number TDA7293 for process sound system. This amplifer was have the input for a radio, TV, stereo or other line level device. It also has a phono input for a record player, guitar, microphone or other un-amplified source. With the addition of a low pass filter at the input, it makes a great amp for a small subwoofer.

Parts

R : 660 Ohm 1/4 W Resistor = 2 pcs.
R : 22K 1/4 W Resistor = 5 pcs.
R : 10K 1/4 W Resistor = 1 pcs.
R : 30K 1/4 W Resistor = 1 pcs.
C : 2200uF 35V Electrolytic Capacitor = 2 pcs.
C : 0.22uF Capacitor = 2 pcs.
C : 22uF Capacitor = 4 pcs.
C : 0.45uF Capacitor = 2 pcs.
U1,2 : TDA7294 100W DMOS AUDIO AMPLIFIER WITH MUTE/ST-BY

T1 : 50V Center Tapped 5 Amp Transformer
S1 : SPST 3 Amp Switch
S2 : DPDT Switch
F1 : 2 Amp Fuse
SPKR1 : 8 Ohm 120W Speaker
MISC : Case, Knobs, Line Cord, Binding Posts Or Phono Plugs (For Input And Output), Heatsinks For Q1 And Q2

PICTalker - Low Cost PIC Speech Synthesizer

PICTalker is a low cost allophone-based system for synthesis speech. The system use PIC16F628 microcontroller as main processor. You need a PIC development system and programmer, and Microsoft QBasic to program the microcontroller and EEPROMs to build this poject.

Speech quality is somewhat inferior to that from an SPO256 system. Most people immediately understand most or all of the speech it produces provided sufficient care is taken when constructing words from the component allophones. The speech is significantly easier to understand if the loudspeaker used has poor base response.

Download
Documentation and source code

tag : low cost speech synthesizer, PIC project (src)

PICTalker - Low Cost PIC Speech Synthesizer

PICTalker is a low cost allophone-based system for synthesis speech. The system use PIC16F628 microcontroller as main processor. You need a PIC development system and programmer, and Microsoft QBasic to program the microcontroller and EEPROMs to build this poject.

Speech quality is somewhat inferior to that from an SPO256 system. Most people immediately understand most or all of the speech it produces provided sufficient care is taken when constructing words from the component allophones. The speech is significantly easier to understand if the loudspeaker used has poor base response.

Download
Documentation and source code

tag : low cost speech synthesizer, PIC project (src)