If you are curious about how you'd use a Dip Meter, check out my video on the basics of Dip Meters. In the video, I use a Heathkit Dip Meter, but it is a more modern, solid state version that I built as a kid in the 70s.
As a power RF specialist I depedn on my trusty grid dipper. Mine happens to be an Eico 710. It's basically similar to the Heathkit shown but a bit more compact. I carry it in a canvas case originally made for a "brick" cell phone. The instrument and its coil set (The coils live in a mahogany block drilled to accept the pins.) fit perfectly. There is even room for a spare tube, a BNC coil adapter, and the Manual which fits in its own zippered compartment. I previously owned a solid state immitation "grid" dip meter, but it was almost useless so I traded it.
In addition to analyzing resonant circuits, the GDO can test transmission lines for electrical length and measure the distance to shorts or opens. As a wavemeter it detects RF leakage. Amazing versatility for an instrument with just one triode section. I won't leave home without it!
I built a few Heathkit devices, including a color television, an oscilloscope, and a printer. Heathkit did an extraordinary job of design in putting together their kits. The assembly documentation was second to none. The color television had at least 5 or 6 manuals, covering the assembly of the circuit boards, the mechanical assembly of the unit, tuning the varius stages, and adjustments to the set. It was a marvelous way of gaining experience in assembly and testing of complex devices. I don't think there are any equivalent systems today that even come close to the experience Heathkit provided.
What are the engineering and design challenges in creating successful IoT devices? These devices are usually small, resource-constrained electronics designed to sense, collect, send, and/or interpret data. Some of the devices need to be smart enough to act upon data in real time, 24/7. Are the design challenges the same as with embedded systems, but with a little developer- and IT-skills added in? What do engineers need to know? Rick Merritt talks with two experts about the tools and best options for designing IoT devices in 2016. Specifically the guests will discuss sensors, security, and lessons from IoT deployments.