Try this link:
One new slide switch, active in delay mode, goes from "normal" to "extend" which gets you 35.6 seconds of delay, 17-plus seconds of overdubbable loop. No mention of change in fidelity. Addition of LEDs let you know which mode your in. Another new slide switch lets you choose between fixed and variable levels of looped output when in loop mode.
Douglas Baldwin, coyote-at-large