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ID: 208668

PRE4562 - AUDIO LINE PREAMPLIFIER - PROGRAMMED SYSTEM

Retired

PRE4562 - AUDIO LINE PREAMPLIFIER - PROGRAMMED SYSTEM

Producer: AVT

The audio line preamplifier with the signal input switch is an indispensable element of any amplified amplifier circuit. The described project is equipped with a relay (PVC) volume control eliminating problems with modern potentiometers and remote control to improve service while maintaining the simplest possible system solutions. Thanks to the use of modern elements, a very decent result can be achieved with a small cost.

Recommendations: a complete preamplifier with a source selector that is useful, for example, in a built-in power amplifier.

Basic parameters:

  • inputs for 3 signal sources, gain control
  • 230Vac power supply
  • "minimalist" design, intended for users with high requirements
  • a preamplifier based on low noise LM4562
  • remote control using the RC5 transmitter
  • ATmega328 microcontroller, LCD display
  • programmed layout

A detailed description in EP2 / 13 or

208668

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