An electronics, metalworking, and 3D printing enthusiast has created some Reference Circuit Books where the ‘pages’ are PCBs. Published by Bolt Industries, there are presently two volumes available, with their content produced by the aforementioned expert enthusiast and Burqueño, Ian Dunn. The first book focuses on DC Circuit Fundamentals, while the other explores LEDs, transistors, and oscillators. The ‘books’ are available now and sell for $37 each.
