Listing is for a set of 20 pieces. Low Noise Amplification Tape-cut product ● Appears to be used in NAKAMICHI CR-30 and CR-40 (Based on buyer information) ■ Unused original product, but due to the long storage period, the printing may be faded, or the metal parts such as the lead wires may be oxidized and discolored. Please refrain from purchasing if you are looking for brand new, pristine items. ■ The LOT# etc. in the photos may differ from the actual product. If you are concerned, please contact us before purchasing and we will investigate and respond. Also, the quantity and packaging method shown in the photos may differ from the actual listing content. If you want more, please contact us. ■ Items paid for by 4:00 PM will be shipped on the same day (excluding Saturdays, Sundays, and holidays. We do not ship on Saturdays, Sundays, and holidays). ■ Domestic procurement. ■ We do not negotiate prices. Also, we cannot change the set quantity, for example, changing a set of 2 to a set of 1. ■ An invoice will be attached. Toshiba Low Noise Amplification FET 2SK371-BL Marked "K371" 20 pcs/set ● Used in NAKAMICI CR-30, CR-40 (The customers' reports. Not verified by myself in person) Procured in Japan Original and unused