Ace Tone Echo Chamber EC-10 1970s

This analog echo unit was produced under the Ace Tone brand name. Ace Tone was the predecessor to Boss and Roland, so this effect can be seen as a precursor to the Roland Space Echo.  This tape-based echo features 11 selectable modes, with seven input and three output jacks. 

Controls: Echo Time, Echo Effect, Echo Depth, Mode, Mic Level (x 2)