LC Audio Low Noise DC Regulator
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Description: LC Audio Low Noise DC Regulator
This DC Dual Tracking Regulated Power Supply is perfect to supply many projects and audio systems (including our RIAA / MC phono preamplifiers) with clean, noise free power. It can be used for virtually any application that is based small signal circuitry, like low noise pre-amplifiers, that requires a very clean and stable power supply. Since the output voltage is adjustable, the low noise regulator board can also be used as a DIY lab power supply. Even if it does not have a current limiter, the over-dimensioned regulator transistors allow for trouble free operation. To optimise its audio performance, ultrafast recovery, low noise diodes are used and a toroid is included with the module to give up to ±13V and ±1 Amp.
A blue LED is used to pre-regulate the voltage for the main reference and gives an improvement in noise suppression of 25 dB. Total noise rejection is 90 dB and internal noise sources are in the magnitude of 1 uV or 70-100 times better than a standard 7812 / 7912 regulator. The trimmer is used to adjust the output voltage in the range of 0 to 13 V plus and minus.