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L-1 Digital Tuner

Aleksei from L-1 didn’t just screw a guitar tuner to an Eurorack panel – he modified the circuit, and replaced some parts to have the correct range. Now it shows notes in the range 10 octaves.

  • Two sources selectable with switch. Multiples to use a signal further.
  • A4 button –  select A4 frequency in the range 430-450Hz.
  • ON button – hold the button for 1 second to turn the screen off/on. Momentary press to select tunning item: Chromatic, Guitar, Bass, Violin, Ukulele. Default position is Chromatic. No need to change.
  • If no wave at the input or a wave is out of the range, screen will turn off in two minutes. If this happens just press the ON button for 1 second to turn the screen on.



  • Power consumption: V+ 7mA, V- 0mA.
  • Panel width: 8hp




Other modules by L-1 | L-1 Tube VCA | L-1 Microcompressor Stereo | L-1 Quad VC Equalizer | L-1 VC Stereo Mixer | L-1 Mutant Vactrol VCF | L-1 Quad VCA-Mixer | L-1 Basic VCO | L-1 2180VCF