Step back into the history of electronics with this original 1977 Voltage Regulator Handbook published by National Semiconductor Corporation. A must-have for collectors, engineers, and vintage computing enthusiasts. ? Details: ? Publisher: National Semiconductor Corp. ? Year: 1977 ? Title: Voltage Regulator Handbook ? Format: Softcover ? Pages: Technical reference, circuits, and regulator data ? Condition: Pre-owned, cover shows creasing and edge wear consistent with age (see photos). Interior pages intact and legible. ? Great addition to any vintage tech library, electronics collection, or retro engineering reference archive. Thanks so much for visiting my store! I happily accept offers on most items?just click ?Make Offer!? Please note: I do not ship on weekends or holidays. Have any questions? I?m happy to help! Be sure to check out my other listings for more unique finds!