The Radium Springs is a reverb pedal that replicates the sound of a vintage spring reverb unit. It comes with a Pythagoras PCB and pre-programmed EEPROM. The Spin FV-1 IC is sold separately.

The pedal offers three different modes: Reverb, Blackface, and Brownface. In Reverb mode, you can adjust the reverb dwell, bass, and treble. The Blackface mode includes controls for reverb dwell, tremolo rate, and tremolo intensity. The Brownface mode also has controls for reverb dwell, tremolo rate, and tremolo intensity.

There is a toggle switch to select the desired reverb mode. The volume control adjusts the overall output volume, while the mix control allows you to blend the wet and dry signals.

Summary created by AI from the original source.