This listing is for a set of 2 pieces. ■ Although these are unused original items, they may have been in stock for a long time, resulting in faded printing, bent pins, or oxidation and discoloration of the metal parts. Please refrain from purchasing if you are looking for brand-new, pristine items. ■ The LOT# etc. in the photos may differ from the actual items. 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). ■ These are domestically sourced items. ■ We do not negotiate prices. Also, we cannot change the set quantity, for example, changing a set of 2 to a set of 1. ■ A delivery note (invoice) will be attached. NEC Transistor 2SA1138 Marked "A1138" 2 pcs/set ● Used in SONY TC-K777, according to the service manual Procured in Japan Original, new and not used