Pedals that stack with the Tone City TC-T37 Mad Stone Classic Germanium Diode

Spaceman Explorer 6-Stage Phaser

Run Spaceman Explorer 6-Stage Phaser after Tone City TC-T37 Mad Stone Classic Germanium Diode in the signal chain, clear of Tone City TC-T37 Mad Stone Classic Germanium Diode's own gain stage

Shin's Music Dumbloid

Shin's Music Dumbloid pushes a high gain tone toward tight

Dunlop MXR Distortion Plus

Where this leans bright, Dunlop MXR Distortion Plus answers back warm

Crazy Tube Circuits Golden Ratio

What Crazy Tube Circuits Golden Ratio brings here leans toward tight — that's worth building a pairing around

Boss DD-8 Digital Delay

Boss DD-8 Digital Delay's analog warmth voice goes after Tone City TC-T37 Mad Stone Classic Germanium Diode in the signal chain — it's not there to compete with Tone City TC-T37 Mad Stone Classic Germanium Diode's own germanium character — goes in the amp's FX loop (or last, into a clean amp)

Walrus Audio Bellwether Stereo Analog Delay

Run Walrus Audio Bellwether Stereo Analog Delay after Tone City TC-T37 Mad Stone Classic Germanium Diode in the signal chain, clear of Tone City TC-T37 Mad Stone Classic Germanium Diode's own gain stage — goes in the amp's FX loop (or last, into a clean amp)