Nokia 8800 phone radio module / circuit using TEA5761UK Nokia 8800 phone radio module / circuit using TEA5761UK
Posts tagged phone
Headphone amplifier ic
Headphone amplifier ic circuit using TL072, BD139, BD140
Audio Stereo
30w tda1521 Audio Stereo circuit diagram Audio Stereo using TDA1521 pcb design Audio Stereo using TDA1521 pcb design
Intercom switch circuit
Intercom switch circuit Intercom switch circuit Two line intercom plus a telephone changeover switch Click here for the circuit diagram. The circuit presented here can be used for connecting, The circuit presented here can be used for connecting two telephones in parallel
Constant high current regulator – circuit modules
Constant high current regulator – circuit modules using BD140, 555, 3041, BC546, 4060 Constant-Voltage Constant-Current Battery Charger – BD140, 555, 3041, BC546, 4060
