Showing posts with label tracer. Show all posts
Showing posts with label tracer. Show all posts
Monday, July 8, 2013
Signal Tracer using LM386 Amplifier Chip
The main part of this circuit is the LM386 amplifier chip. It also uses a transistor input to buffer the input signal and provide extra gain for the LM386. The little unit has helped me out on numerous occasions when trouble shooting any amplifier circuit like a stereo receiver, tv / vcr audio section, radios, cd players and car stereos.
Tuesday, April 2, 2013
Signal Tracer Circuit Using LM741
This is a circuit for signal tracer. This circuit is work with based on LM741. This is the figure of the circuit.
This is a high gain amplifier circuit that can be operated from a battery pack of 6 or 9 volt battery pack. The IC1 uA 741 is wired as a high gain non-inverting amplifier and its output is amplified by a pair of complementary transistors (Q1 & Q2) to drive the speaker. The negative feedback from the common emitter junction of the two transistor stabilizes the gain of the circuit. The resulting audio output is sufficient to serve as a signal tracer. The POT R6 can be used as a volume controller. All capacitors must be rated at least 15V.
This is a high gain amplifier circuit that can be operated from a battery pack of 6 or 9 volt battery pack. The IC1 uA 741 is wired as a high gain non-inverting amplifier and its output is amplified by a pair of complementary transistors (Q1 & Q2) to drive the speaker. The negative feedback from the common emitter junction of the two transistor stabilizes the gain of the circuit. The resulting audio output is sufficient to serve as a signal tracer. The POT R6 can be used as a volume controller. All capacitors must be rated at least 15V.
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