Surprisingly though, few people know just how many uses there are for the 260 or how to make many checks that are often thought impossible without expensive and complicated equipment. The purpose of this book is to show a cross-section of the many applications of the 260, ranging from PREFACE... i 260 VOM Family ... 1 260 Ranges ... 4 1.0 MEASURING VOLTAGE ... 11 1.1 DC Voltage Measurements... 11 1.2 Small Voltage Differences... 14 1.3 High Voltage ... 16 1.4 Low Voltage ... 20 2.0 MEASURING CURRENT ... 21 2.1 High Current ... 21 2.2 A-C Current ... 24 3.0 MEASURING RESISTANCE ... 26 3.1 High Resistance ... 26 3.2 Low Resistance... 27 4.0 MEASURING POWER 30 4.1 Power ... 30 4.2 Audio Power... 32 4.3 Power Ratios ... 34 5.0 OTHER MEASUREMENTS ... 37 5.1 Frequency ... 37 5.2 Transistor Tester... 39 5.3 Transistor In Circuit Testing... ΗI 5.4 Diode Testing... 41 I 5.5 Capacity ... 4A I 5.6 Microvolt Attenuation... 5.7 Batteries ... Ill 5.8 Field Strength ... 6.0 RECEIVER MEASUREMENTS... t 6.1 RF Signal Tracing... 6.2 Amplifier Phase Shift... 6.3 Balancing Push Pull Amplifier 7.0 TRANSMITTER MEASUREMENTS ' 7.1 Broadcast Transmitters... 7.2 Transmitting Tubes... 8.0 INDUSTRIAL MEASUREMENTS ... ft" 8.1 Power Tubes... 8.2 Motors and Generator ft*' 8.3 Temperature ... ft1' 9.0 AUTOMOTIVE ... /I 9.1 Quick-Test Checks ... M 9.2 Battery Testing ... 9.3 Voltage Drops... 9.4 Ignition Coil Testing... 10.0 260 ADAPTERS ...