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Engineering Projects For You

Telephone Line Based Audio Muting and Light-on Circuit

Very often when enjoying music or watching TV at high audio level, we may not be able to hear a telephone ring and thus...

Low-Cost PCO Billing Meter

The circuit presented here can be used in PCOs for displaying the actual bill. The comparative disadvantages of the presented circuit are as follows: 1....

40-Metre Direct Conversation Receiver

Using the circuit of direct-conversion receiver described here, one can listen to amateur radio QSO signals in CW as well as in SSB mode...

Ultra Low Drop Linear Regulator

The circuit is a MOSFET based linear voltage regulator with a voltage drop of as low as 60 mV at 1 ampere. Drop of...

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