RARE Hiwatt Echo-Theremin – Great for Weird Synth Effects! Attn Circuit Benders! | #344440321
HIWATT Echo Theremin fun! Rare, short-lived, awesome mini theremin I've owned since they first came out in the early 2000's. Really cool and unique... | By Enfield Studios, Lessons & Repairs -
ヤフオク! - HIWATT ECHO THEREMIN ハイワット エコ...
Hiwatt Echo theremin with onboard delay: demo and review - YouTube
Hiwatt CTE-2000C Custom Tape Echo (by Fernandes) FOR SALE
HIWATT Echo Theremin fun! Rare, short-lived, awesome mini theremin I've owned since they first came out in the early 2000's. Really cool and unique... | By Enfield Studios, Lessons & Repairs -