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Best BJT for audio applications | diyAudio
https://www.diyaudio.com/community/threads/best-bjt-for-audio-applications.141310/
2009-03-28 12:16 am. #2. There is no one best of anything. There are lots and lots of good BJTs that are good in various circumstances depending on the combination of voltage, speed, gain, noise etc. you want. Personally, I like BC550/560 for general purpose use. They have low noise and are cheap. Get ones in the 'C' gain group if you can.
BJT audio amplifier - CircuitLab
https://www.circuitlab.com/circuit/6syafk/bjt-audio-amplifier/
BJT audio amplifier PUBLIC Summary A one-transistor amplifier, intended to amplify audio picked up by a piezoelectric transducer. Link & Share Copy and paste the appropriate tags to share. CircuitLab Circuit URL (e-mail, IM, …
EETimes - Discrete audio amplifier basics - Part 1 ...
https://www.eetimes.com/discrete-audio-amplifier-basics-part-1-bipolar-junction-transistor-circuits/
The stage gain of a BJT, used as a simple amplifier, can be determined from the relationship: V out / V in = h fe R L / ( R S + r i ) where R S is the source resistance, R L is the collector load resistor, h fe is the small-signal (AC) current gain, and r i is the internal emitter-base resistance of the transistor.
ECE 2201 – PRELAB 7x BJT APPLICATIONS A 3 …
https://users.wpi.edu/~sjbitar/ece2201/lab/ece2201_sjb_lab7x_audio_inv.pdf
BJT APPLICATIONS A 3-STAGE 5W AUDIO AMPLIFIER UTILIZING NEGATIVE FEEDBACK INTRODUCTION Figure P7-1 shows a simplified schematic of a 3-stage audio amplifier utilizing three BJT amplifier building blocks – a Differential Pair, a Common-Emitter Amplifier (with active current source load) and an Emitter Follower.
bJT as an amplifier Project | Transistor Amplifier | Mini ...
https://techatronic.com/transistor-amplifier-circuit-using-bc547-transistors/
In this project, we will make an audio amplifier. A transistor amplifier is used to amplify the low input audio signals. We can take the low input signals from the audio jack of smartphones or PCs and convert them into high-quality amplified output signals which are given to an external speaker. An external power supply is also needed to boost ...
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