Digital delay, but of the understated, simple kind more at home amongst analog brethren. You can blend the original note right out if you like, that's fun. Basically: it sounds good and does a simple job well.

Model: Electro-Harmonix #1 Echo
Made: USA, recent model
Type: digital delay
Power: standard 9v negative power supply (not included)
Equivalent new street price (approx): $265aud
Mods: none
Accessories: no box or manual
Condition notes: used, few minor marks, very good condition