Purdy's/Dewey's Combo Pack

Purdy's Instrument Handbook (By Ralph Dewey) This book represents years of instrument experience and know-how. It contains: • Notes • Examples • Procedures • Hook-up drawings and tables The author’s purpose was to make a quick reference field book, rather than a textbook. This handbook is a “Must Have” book for all instrument craftsmen and technicians.

The Companion Book to Purdy's Instrument Handbook ~ By Ralph Dewey The success of Purdy's Instrument Handbook (Volume #1) indicates that there is a real need for "Quck Reference" information. This second book (Volume #2) contains: Additional notes Examples Drawings Formulas Loop Designs Educational material and other references This is a must have handbook for quick reference information and pairs perfectly with volume #1

Dewey's Instrument Troubleshooting Handbook (By Ralph Dewey) This pocket-sized spiral book contains: • Startup and checkout pointers and fundamentals • Tricks of the trade, • Instrument failsafe considerations, • Plenty of troubleshooting techniques • Safety tips