Here some books about electrical and electronics engineering.
Books about medical technology you find here.

Copyrighted books you can not download from here. But you will find all the below mentioned books in the endless ocean of the Internet. Or directly in The Pirate Bay.
But do not forget to buy the books after you found your favorite one. It is anyway nicer to hold a real book in hands.
And please support your local bookshop. They can order any book for you. Boycott Amazon!

For Electricians
Refrigeration and Air Conditioning
Automobile
Electronics for Beginners
Electronics for Students and Engineers
Electronics for Practitioners

For Electricians

Advanced Electrical Installation Work

Linsley

411 pages
Components, working practices, regulations and some theory.
Comprehensive, nice presented, perfect for beginners.

Electrical Installation Designs

Atkinson

224 pages
Planning of installation with examples.
For advanced professionals.

Electrical Installation Guide

Schneider Electric

532 pages

13.8 MB download
In depth knowledge compilation and regulations.

Electrical Installation Work

Scaddan

469 pages
Quite similar to the above mentioned but more in depth.
Perhaps a good addition with more details.

Wiring Complete

Taunton's

260 pages
Similar to the Black & Decker book.
A picture book for hobbyist.

Electrical Wiring - Commercial

Mullin, Simmons

647 pages
For the practicioner. No theory but 2.8 (1.3kg) pounds of detailed information.
For the practiciners or those who want to become one.

The Complete Guide to Wiring

Black & Decker

339 pages
A picture book for the non-electricians.
Undemanding but nicely presented and not expensive.

Wiring

Home Skills

131 pages
... and another picture book...

Refrigeration and Air Conditioning

Refrigeration and Air Conditioning Technology

Whitman, Tomcyk

1457 pages
All aspects are perfectly explained and presented. Including all you have to know about
working principles, motors, solenoids etc. My favorite.

Air Conditioning and Refrigeration

Miller, Miller

626 pages
Comprehensive but not as detailed and nicely presented as the above one.

Automobile

Automobile Mechanical and Electrical Systems

Denton

527 pages
Very well structured, comprehensive, much to much for us hospital technicians but at least
the chapter about the electrical system is worth reading.

Electronics for Beginners

Basic Electronic Components

Elenco

28 pages

600 KB download
Basics for the first electronic project

Construction Step by Step

Madlab

4 pages

230 KB download
First contact with electronic devices

Electronic Circuits for the Evil Genius

Cutcher

226 pages
Basics and small electronic projects

Electronics - A First Course

Bishop

252 pages
Electronics explained in theory and practice.
The practical relevance makes this book very useful. One of my favorites.

Electronics for Dummies

Ross, McComb

433 pages
Puffed-up with banalities.
Redundant. You must be a dummy to buy this book.

Make Electronics

Platt

350 pages
From the components to simple electronic projects.
Little theory, a lot practical information. Nice book for the beginner.

Electronics for Students and Engineers

Lessons in Electric Circuit

Volume 1 - DC

550 pages

4.1 MB download

Lessons in Electric Circuit

Volume 2 - AC

556 pages

3.8 MB download

Lessons in Electric Circuit

Volume 3 - Semiconductors

403 pages

2.5 MB download

Lessons in Electric Circuit

Volume 4 - Digital

501 pages

2.9 MB download

Lessons in Electric Circuit

Volume 5 - Reference

165 pages

770 KB download

Lessons in Electric Circuit

Volume 6 - Experiments

382 pages

3.1 MB download

OP Amps For Everyone

Texas Instruments

464 pages

2.0 MB download
Circuit design not for everyone but for engineers.

Power Supply Technical Guide

152 pages

4.6 MB download
Power supply design with the focus on switch mode power supplies.

Design of Medical Electronic Devices

Reinaldo Perez

293 pages
Circuit design of biomed equipment.

Hands-On Electronics

Kaplan

228 pages
Circuit design for engineers.
Not practical at all.

Introduction to Electronics

Gates

552 pages
For engineers and practitioners.

Introduction to Medical Electronics Applications

Jennings

234 pages
Circuit design and applications for engineers.

Power Supply Cookbook

Brown

277 pages
All aspects of power supply design.
For engineers.

Practical Switching Power Supply Design

Brown

258 pages
All aspects of switch mode power supply design.
For engineers.

Switchmode Power Supply Handbook

Billings, Morey

859 pages
Similar to the above but even more detailed.

Electronics for Practitioners

OP Amp Circuit Collection

National

33 pages

990 KB download
Standart OP Amp applications.

Practical Electronics for Inventors

Paul Scherz

624 pages
About electronic circuit design, in theory and practice.

The SMD Codebook

Unknown

80 pages

3.2 MB download
SMD data sheets and package codes.

Basic Electronic Troubleshooting For Biomedical Technicians

Nicholas Cram

239 pages
From electronic devices to standart applications. With hints for troubleshooting in general
electronics, but not in hospital equipment repair. Practical oriented and useful.

Consumer Electronics Troubleshooting and Repair Handbook

Davidson

1198 pages
About common faults and troubleshooting techniques in consumer electronics.

Electronics For You - Projects and Ideas

www.electronicsforu.com

205 pages

13.6 MB download
Compilation of electronics circuits.

Introduction to Electronics

Gates

552 pages
For engineers and practitioners.

Make Electronics

Platt

350 pages
From the components to simple electronic projects.
Little theory, a lot practical information. Nice book for the beginner.

Troubleshooting and Repairing Switch Mode Power Supplies

Yong

271 pages
For sale only through the Internet.
Very practical with a lot of troubleshooting hints.

Troubleshooting Switching Power Converters

Maniktala

318 pages
Circuit design of switch mode power supplies.
For engineers and technicians who want to understand the functioning of switch mode power supplies.