Not sure if this works on the Electraverb series, but it certainly does on the Duels, SD60s, and 38s... Plug your guitar straight into the effects loop return jack! This runs your signal through a single gain stage, then straight into the phase inverter and on to the output tubes. The master and presence knobs are the only active controls when running this way. The result is warm Tweed-style clean sound - takes OD pedals really well. Have fun!