Circuits that Modulate the sound in a variety of ways. View cart “EA Tremolo v4 – Classic Tremolo” has been added to your cart. Default sorting Sort by popularity Sort by latest Sort by price: low to high Sort by price: high to low View: 50 100 All Quick View Quick View ModulationApollo Tremolo – Ultimate Advanced Tremolo $8.95 Add to cart Quick View Quick View Mod Boards, ModulationD’Lay Tap Tempo PCB $4.95 Add to cart Quick View Quick View Modulation, Reverb or DelayD’LAY v3 – The Best PT2399 Delay PCB $8.95 Add to cart Quick View Quick View ModulationDr. Phybes v4 – Phase 90 w/ Mods $8.95 Add to cart Quick View Quick View ModulationEA Tremolo v4 – Classic Tremolo $7.95 Add to cart Quick View Sale! Quick View Mod Boards, Modulation, Sale ItemsEmerald Ring – Best Octave Up Green Ringer style PCB $2.95 $1.95 Add to cart Quick View Quick View Modulation, Bass Ready CircuitsMINI-ME 2021 version – Best analog chorus PCB $8.95 Add to cart Quick View Sale! Quick View Sale Items, Modulation, NostalgiTone ProductsNostalgiTone “Singles” – 60’s Tremolo $10.95 $8.95 Add to cart Quick View Quick View ModulationThe Vibe – v4 Version – Easiest and best Vibe PCB $8.95 Add to cart