BOSS OD-1 Overdrive (Silver Screw/JAPAN/RC3403ADB/#8300)

This is a rare, very early-production OD-1 featuring a Raytheon 3403 quad op-amp!!

Early OD-1 models featured a quad op-amp (a single chip containing four op-amps). While the RC3403ADB—found in the very earliest units—and the NEC μPC4741C—found in units from lot #8400 to #8800—have been confirmed, this unit features the former.The LED indicator is dedicated solely to the battery checker and differs from the specifications of the current BOSS Effector. Units equipped with the RC3403ADB are characterized by a somewhat tight low end, extended highs, and a bright, crunchy sound. This is a rare piece that lets you experience the original sound of the legendary OD-1!! This unit’s serial number is #8300, and it is believed to have been manufactured in June 1979. Circuit

board: 052-281B
; OP-IC: RC3403ADB (#RAYC7918); features
external spring-loaded transparent switches
; LED is for the battery checker

; ACA specification; MADE IN JAPAN

*The rubber bushings on the coin screws have been replaced

Year: 1979

Accessories: None

Handled by: Sano

*The warranty period is one month from the date of purchase.

Click here to read our column, “The Beginning of a Legend: A Thorough Analysis of the Appeal of the ‘BOSS OD-1 “Silver Screw” Era’” → https://tcgakki.com/pages/magazines-boss-od1

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