Free Download PDF TDA7294 IC Second Voice recorder module and Service Manual free download, schematics, datasheets, eeprom bins, pcb TDA7294 IC Second Voice Recorder Module. Non-volatile multi message recorder using ISD chips. Just change one resistor for longer duration. Standalone operation using just six onboard bottons. Record via built-in microphone or external line in. Speaker […]
Posts tagged pcb
Adjust the Layout of Components on PCB
Adjust the Layout of Components on PCB The layout of a PCB can be very important so I always lay the components out as they are in the circuit diagram to begin with. Instead of circuit symbols I draw the component pins. The drawing is made with a pencil on 1/4″ squared paper. The compnents […]
STK461 Class D Modules
STK461 Class D Modules STK461 Class D Modules Circuit Diagram STK461 Class D Modules STK461 Class D Modules
Interface USB
Gamepad USB interface circuit diagram using PSX or N64
sound system equipment
sound system equipment sound system equipment Audio Mixer circuit diagram Using FET This simple circuit mixes two or more channels into one channel (eg. stereo into mono). Parts R1, R3 10K Pot R2, R4 100K 1/4 W Resistor R5 6.8K 1/4 W Resistor C1, C2, C3 0.1uF Capacitor Q1 2N3819 Junction FET MISC Wire, Shielded […]
car audio wiring
car audio wiring Wiring Diagram Audio Car Honda CRV IVA D310, PXA H701, ORION Extreme 800.4 Car Audio Wiring Car Audio Wiring Wiring Diagram Audio Car Honda CRV
