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Simple Electronic Combination Lock Circuit

admin May 3, 2010 3 Comments
Circuit Description This section describes the circuit diagram of simple electronic combination lock. The central part of this circuit is the IC LS 7220. This circuit is used for the activation of a relay which controls a device on/off...
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Mini Amplifier Circuit

admin May 3, 2010 3 Comments
Circuit Description The circuit diagram of Mini 2 W amplifier has been published here. The core part of this circuit is the IC TDA 7052 from Philips Semiconductors. The IC TDA7052 is a mono output amplifier. This IC has...
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Simple Amplifier Using LA 4440 IC

admin May 3, 2010 5 Comments
Circuit Description Circuit diagram of 19 Watt amplifier using LA 4440 has been published here. This amplifier circuit is based on the IC LA 4440 developed by Sanyo. In this circuit, amplifier IC LA 4440 acts as bridge amplifier....
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