[caption id="attachment_30395" align="aligncenter" width="612"] The MN3205 BBD chip in an original Ibanez AD9 Analog Delay pedal. (Photo: Christopher Scapelliti)[/caption] Guitarists have been treated to a wealth of innovations in the world of delay effects. Originally, echo and other time-based effects could be created only by mechanical means. Analog tape devices, like the 1960s Maestro Echoplex, and so-called “oil-can” delays, like Fender’s Variable Delay unit and the Tel-Ray Ad-n-Echo shown below, used magnetic storage to record sounds and play them back in echoing fashion.... Click on the title for more