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| Cleaning | 1 |
| Economics | 1 |
| Educational Environment | 1 |
| Guidelines | 1 |
| Lighting | 1 |
| School Maintenance | 1 |
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| Allphin, Willard | 1 |
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Download full textAllphin, Willard – 1965
The basic principles of the most commonly used lamp types and the circuitry which makes them operate are discussed. The two objectives of this book are to serve as a--(1) guide to economical lighting, and (2) a permanent reference source for troubleshooting. Areas dealt with include--(1) lighting fundamentals, (2) incandescent lamps, (3)…
Descriptors: Cleaning, Economics, Educational Environment, Guidelines
