狭山市, Japan
About this listing
BOSS BF-2 Flanger (Serial 054900) – Japan VintageEstimated April 1981 production lotVery early Made in Japan black label periodACA specificationCleaned, inspected, and fully testedOverviewThis listing is for a BOSS BF-2 Flanger from the Japanese vintage era.The BF-2 was released in June 1980, and this particular unit, with serial number 054900, is estimated to be from April 1981. This makes it a very early example from the Made in Japan black label period.Carefully cleaned, inspected, and fully tested, this BF-2 retains the classic analog flanger sound that made the model one of BOSS’s most iconic compact modulation pedals.Based on the serial number, internal PCB markings, IC configuration, potentiometer codes, and component markings, this pedal is estimated to be from the April 1981 production lot. Since BOSS serial numbers from this era function more like lot numbers than strict individual date codes, the safest production estimate is around spring 1981.All electronic components appear to remain original.No visible signs of electronic component replacement were found.Key Features & ConditionModel: BF-2 FlangerSerial number: 054900Made in JapanBlack labelBlack screwACA specificationEstimated April 1981 production lotVery early BF-2 unitAll electronic components appear originalFully cleaned and carefully inspectedTested and confirmed working properly with both ACA adapter and 9V batteryOperation is very goodNo noticeable scratchiness in the potsNo accessories includedPedal onlyThe unit shows scratches, marks, dirt, and some rust consistent with vintage gear.Overall cleaning has been performed, and while there are cosmetic signs of age and use, the pedal is in clean condition for its age.Please refer to the photos for exact cosmetic condition details.Maintenance / Cleaning DetailsThe jack contacts were removed and polished with compound to remove oxidation.No scratchiness or noise was found in the potentiometers during inspection. After cleaning, the pots were checked again and no issues were found, so no contact conditioner was applied.The rubber bushing appears to have been replaced by a previous owner. It has no noticeable hardening or deterioration, and it is currently in good condition, so it was not replaced during this servicing.The pedal has been tested with both an ACA adapter and a 9V battery, and operation is good.Early Enclosure / Transitional DetailAlthough this unit has black screws, the enclosure appears to have construction details close to earlier silver-screw BF-2 examples.On later-style units, the battery snap wiring typically exits through the same area as the switch wiring. However, this unit has a separate wiring hole similar to early examples.The black screws themselves appear likely to be period-correct based on the aging and rust on the screw threads. For this reason, this unit may represent a transitional-period example from around the changeover from silver-screw to black-screw specifications.This is not presented as a definitive factory specification claim, but it is a notable early construction detail documented for transparency.Serial Number / Estimated Production PeriodSerial number: 054900Estimated production lot: April 1981Estimated range: around March to May 1981The BF-2 was released in June 1980.Because this unit is estimated to be from April 1981, it can be considered a very early example from the Made in Japan black label period.The dating estimate is primarily based on the BOSS 6-digit serial format from this era. When the first two digits “05” are interpreted as the production month code, the result points to April 1981.Because BOSS serial numbers from this period are generally understood as lot-based numbers, this date should be considered an estimated production lot rather than an exact individual build date.Production Dating EvidencePrimary evidence:Serial number: 054900The first two digits “05” correspond to an estimated April 1981 production lot when interpreted using the common BOSS 6-digit serial dating method for this period.PCB markings:PCB reverse marking: BF-2 2291033200PCB front marking: BF-2 / ET-54A / ET5211-510AThese board markings are consistent with an early to earlier-period BF-2 circuit layout.Major IC configuration:NEC C4558C ×2MN3207 BBDMN3102 clock driverTL022CP78L05AV voltage regulatorThis IC configuration is consistent with the early Japanese BF-2 analog BBD circuit design.Component Date Code SupportSeveral internal components show markings that are consistent with parts manufactured around early 1981, which supports the estimated April 1981 assembly period.Notable examples include:78L05AV marking: 8108ALPS potentiometer markings: 134M / 141MMN3207 marking: 12MN3102 marking: 13Multiple electrolytic capacitors with “12” and “13” markingsTransistor markings such as 1CThe 78L05AV “8108” marking is consistent with a 1981 week-code style marking. The ALPS potentiometer markings “134M” and “141M” are also consistent with an early-1981 to spring-1981 component period.These parts do not provide a single exact build date on their own, but together they strongly support an assembly period around spring 1981.Other Major Components Documented for TransparencyOperational amplifiers:NEC C4558C P1240E ×2TL022CP MalaysiaBBD / clock ICs:MN3207 12MN3102 13Voltage regulator:F 78L05AV 8108Potentiometers:ALPS 214N 141M 50KBALPS 214N 134M 250KCALPS 214N 50KC N 141MTransistors:C732 GR 1CC1815 GR 1CK30A Y 18A733 AP212All major electronic components appear original, and no electronic component replacement work was observed.Please note that the rubber bushing appears to have been replaced by a previous owner and was not replaced during this servicing.About the BOSS BF-2 FlangerThe BOSS BF-2 Flanger is one of the classic analog compact pedals from BOSS’s early Japanese production era.Released in June 1980, the BF-2 became one of BOSS’s most recognizable and long-running analog modulation pedals.Using an analog BBD circuit, the BF-2 delivers a wide range of flanging tones, from subtle movement and chorus-like modulation to metallic jet-style sweep sounds.Controls:MANUALDEPTHRATERESPower:9V battery or ACA-type adapterNote: Battery and ACA adapter are not included.IncludedNone. Pedal only.Battery and ACA adapter are not included.Shipping / Import Duties / Address RestrictionsShipping costs and delivery conditions are determined according to the individual listing, destination, package size, declared value, and current customs and shipping requirements.International orders are shipped from Japan using Japan Post EMS (Express Mail Service).EMS shipping is available only when the package meets the applicable size, weight, declared value, destination, customs, and service requirements.If EMS is unavailable for the destination or cannot be used due to the package size, weight, declared value, customs requirements, service limitations, or other shipping conditions, we may contact the buyer for clarification, request an alternative address, or cancel the order.If free shipping is offered, it normally applies to outbound shipping charges only.Shipments to the United States are generally sent under DDP conditions in accordance with current U.S. customs and Japan Post requirements.For qualifying U.S. shipments, the customs duties covered by the DDP declaration are prepaid by the seller before shipment.However, DDP shipping does not guarantee that the buyer will have no additional charges.Additional duties, taxes, customs reassessments, customs clearance fees, brokerage fees, carrier handling fees, storage charges, or other expenses not included in the original DDP declaration may still be imposed by U.S. customs authorities or the delivery carrier.Any such additional charges are the buyer’s responsibility.Taxes or fees collected separately by Reverb are not included in the Japan Post DDP customs prepayment.For destinations or charges not covered by DDP, import duties, taxes including VAT, customs clearance fees, brokerage fees, carrier handling fees, and any other charges imposed by the destination country or delivery carrier are also the buyer’s responsibility.VAT or taxes collected by Reverb at checkout may not include customs duties, clearance fees, postal handling fees, or carrier charges.Please NoteWe cannot normally ship to P.O. Box, POB, APO, or FPO addresses.Depending on the destination and local delivery conditions, delivery may be completed without a recipient’s signature or through unattended delivery.Shipping eligibility may vary depending on the destination country, address type, package size, declared value, EMS service availability, and local customs regulations.Certain countries or postal services may restrict delivery to private individuals, registered businesses, specific postal codes, or eligible service areas.If shipping restrictions apply, we may contact you for clarification, request an alternative address, request an additional shipping charge, or cancel the order.Please ensure that your shipping address, recipient name, postal code, telephone number, and email address are complete and accurate before purchasing.Orders that do not meet the applicable EMS shipping conditions may be cancelled.Please refer to our full Shipping Policy for additional details.About RETUNE WORKSRETUNE WORKS specializes in careful inspection, cleaning, and preservation of musical equipment while respecting original circuits, tone, and historical integrity.For this BF-2, all electronic components appear to remain original.No visible signs of electronic component replacement were found.The rubber bushing appears to have been replaced by a previous owner, and since it has no noticeable hardening or deterioration, it was not replaced during this servicing.The pedal has been thoroughly cleaned, inspected, and tested to ensure reliable operation while maintaining authenticity.Our mission is to ensure that quality vintage gear continues to be played, enjoyed, and passed on to the next generation.
Original Price€176.43
7% price drop
New Price€165.33
Incl. VAT
+ €29.10 Shipping
