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BTL Audio Circuit using IC LA4598

BTL Audio Circuit using IC LA4598 THE LA4598 is a TWO-channel power ic that is intended for use in portable audio equipment.  Needing no heat sink during 9v operation facilitates set design with a small footprint.

Wireless Systems Using Aurel RX FM

Portable PA System with Wireless Microphone using wireless systems circuit diagram Component 1: R1 100 Ω        C1 100 µF 25V     D1 1N4007 R2 5.6 kΩ       C2 10 µF 16V        T1 BC547 R3 470 kΩ     C3 220 nF              U1 Aurel TX FM […]

Power Supplies Switching circuit

Power Supplies Switching circuit using LM5020

Audio Power Amplifier

Audio Power Amplifier using IC M5152L and LA4440 Audio Power Amplifier using IC M5152L and LA4440

Circuit diagram DTMF Decoder using HT9032A MT88L70 HT9202H

Circuit diagram DTMF Decoder using HT9032A MT88L70 HT9202H This exciting project and something that many have been developed, but always remains to add some improvements. The DTMF decoder circuit for distinguishing some separate external components to produce devices capable of sending binary code from a button on the multi-tone phone. This circuit, in addition to […]

Touch Switch Circuit Diagram using IC TTL

Touch Switch Circuit Diagram using IC TTL 74HCT74, ZVNL110

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