Electronic Pinball Electronics for Pinball Machines Volumes 1&2 by R.A. Hornick

Description

For sale are volumes 1 & 2 of Robert Hornick's "Electronic Pinball Electronics" from 1979. This is the ultimate guide for servicing and maintaining pinball machines. These books are in excellent used shape and have been stored safely for decades (by my dad).
There is no writing inside either book, and you can see by the pictures that the spines are in excellent shape. The only blemishes on the books are what looks to be the remains of a sticker near the spine on volume 1 and a swipe of what looks like wet dirt (?) on volume 2.
If you're wondering what is covered by each book, here is a summary from the Table of Contents:
Volume 1:
Part 1 - Introduction, Definitions, Electronic Terminology, and Test Equipment
Part 2 - Discrete Electronic Components and Component Packaging
Part 3 - Analog Circuits
Part 4 - Digital Systems
Part 5 - Solid State Pinball Systems
Volume 2:
Part 1 - The Bally Pinball Game
Part 2 - The Gottlieb Electronic Pinball Game
Part 3 - The Williams Electronic Pinball Game
Please message me with any questions