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Voltage Regulator as Audio Amplifier | Full Electronics ...
https://www.electronicsforu.com/electronics-projects/voltage-regulator-audio-amplifier-2
38251 LM338 voltage regulator can also be used as an audio amplifier. The output voltage can be controlled by varying the IC’s reference voltage (pin 1), which is reflected as the output signal in the speaker. The IC can handle up to 5amp current. Circuit and working Circuit diagram of the audio amplifier is shown in Fig. 1.
Voltage Regulator as Audio Amplifier – Phenix PCB- PCB at ...
https://phenixpcb.com/voltage-regulator-as-audio-amplifier/
Voltage Regulator as Audio Amplifier. LM338 voltage regulator can also be used as an audio amplifier. The output voltage can be controlled by varying the IC’s reference voltage (pin 1), which is reflected as the output signal in the speaker. The IC can handle up to 5amp current.
1 Watt Stereo Audio Amplifier with voltage regulators
https://www.electroschematics.com/1-watt-stereo-amplifier-with-voltage-regulators/
Regulator IC 7905 works as an amplifier for the voltages applied to common pin2 (Ground or GND). Also check the LM317 audio amplifier, another interesting circuit. The minimal voltage drop over the standard 7905 is around 2V and it depends on the output current. Feedback resistors in the IC set the gain of the channel internally.
Shunt or Not - Looking for the Ultimate Audio Voltage ...
https://audioxpress.com/article/shunt-or-not-looking-for-the-ultimate-audio-voltage-regulator
The simple shunt regulator shown in Fig. 3 (top) consists of two transistors, and because of the gain factor, it actively decreases ripple and also noise. You will notice at once the much lower noise of this regulator. Zener diode Vz = 22 gives about 23-24V, and ideal PSU voltage should be 6-7V above shunt voltage (regulated voltage).
Class A audio amplifier using the LM317 voltage …
https://www.youtube.com/watch?v=FxHu5c4r89I
More experimenting on the bench with audio amplifier circuits. This time I use the LM317 regulator IC to make an audio amplifier.Lots of cat interruptions!Pa...
T-reg: A High-Voltage Regulator for Tube Amps | …
https://audioxpress.com/article/t-reg-a-high-voltage-regulator-for-tube-amps
Tube amplifiers can benefit from regulated and stabilized power supplies, especially sensitive preamplifier stages, but also (single-ended) power amps. But traditional high-voltage regulators add several extra tubes, complexity, and power losses, while good performance is not easy to obtain. This article, published in audioXpress, April 2009, describes …
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