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Summary of Contents for Elektor TAPIR
- Page 1 Elektor Construction Guide TAPIR The TAPIR is a three-dimensional assembly. To ensure good access to all soldering points, we recommend assembling the kit exactly according to the described sequence.
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Page 2: Kit Contents
The following items are required for the proper assembly of this kit: - A well lit and tidy work surface - The TAPIR kit - A soldering iron or soldering station with a fine tip - Tweezers for placing small SMDs on the board - Resin-core solder with a maximum diameter of 0.5 mm (0.02 inch) - Page 3 Soldering SMDs We recommend soldering the SMD components in the TAPIR kit one at a time. It’s easy to get them confused, and they are so small that they can easily get lost if they are loose on the work surface.
- Page 4 The PCBs The TAPIR is assembled from seven small PCBs supplied as a PCB panel. They collectively form the enclosure for the circuit. Each of these PCBs is numbered: 1. Top piece 2. Side piece with switch 3. Bottom piece with components 4.
- Page 5 Assembly Start by soldering the switch onto PCB 2 and the panel- mount connector for the headset onto PCB 4 (apply solder sparingly). Then remove these two PCBs from the PCB panel and file the tabs off. Next, fit the following components on PCB 3 using the previously described soldering method: 1.
- Page 6 Measure the DC voltage at the upper solder pad of C4 (which is connected to T3 and R4). It should be somewhere between 0.5 V and 1.0 V. If it is not, check all solder joints for proper contact and check that all components have been fitted in the right places.
- Page 7 ‘extend’ the tip. Place the TAPIR on the bench with PCB 4 facing down and solder the Cinch panel mount connector and PCBs 5, 6 and 7 to PCB 4.
- Page 8 Now fit the small spring and then insert the battery as shown on the PCB. The spring can be soldered in place if necessary. Now you can place the lid on the TAPIR and screw it tight. Your TAPIR is ready for use.
- Page 9 The H-field antenna is now ready for use. Bear in mind that when you hold the TAPIR in your hand, your body forms part of the antenna, which may increase the audible hum level.
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