Doepfer A-183-4 exceptions-list makes the M 147 Tube

makes the M 147 Tube especially well suited as a vocal mic

sequencer or Midi/USB-to-CV interface)

harmonically rich new additions

Engineered specifically to fit the Roland TR-8S

Doepfer A-183-4 exceptions-list makes the M 147 TubeModule A 183 4 is a fourfold level shifter. A level shifter is required if the level of a digital control signal has to be increased or decreased. A typical application is the conversion of a gate, trigger or clock signal with +5V voltage level (tolerance range +2+5V) to +12 voltage level. The output voltage level can be set by means of a jumper to +12V or +5V. The factory setting is +12V. But it can be changed to convert also a higher to a lower