Archer Electronic Part – 15V 1W Zener Diodes (2) Cat No. 276-564. In original package from back in the day. I have only one package or unit available to sell. Two Diodes in the package. This electronic part has been in our family home workshop for a long time and is in the original box and new condition. This is a CASH Sale only, No Checks. We can meet at a local "safe place" so you to review the part and then decide if you would like it. Would consider shipping at the buyer’s expense. Thank you for looking and considering this part on Craigslist.