Today I got myself two of these RG316 coaxial cables. Other choices were RG58 and RG174 options. I found this discussion on reddit which suggested that for my application (connecting my bench scope to circuits for testing) any of them will probably do. I got two 4 meter cables, so when I cut them in half I will have four 2 meter cables.
Some notes about how spectrum is allocated in the USA: The United States Frequency Allocation Chart
I must, must, must not get involved in radio. I would love to, but I don’t have enough time or money! Gotta stay digital… :P
An interesting write up concerning a shanzhai knock off: Anatomy of a cheap USB to Ethernet adapter.
I have attached some notes about bipolar junction NPN and PNP transistors.
So I did a circuit. This is a diode/transistor logical OR gate. I’m learning. What I’d like to understand is why the resistors are necessary and why are the resistor values picked such as they are? I’ve asked a question about this over on the EEVblog: What is the purpose of the resistors in this schematic?.
This is awesome. This bloke diagnosed and fixed a problem with an SSD drive: Crucial SSD Drive Failed – Can we save data.?
I found the thermal imager used in the video on his website: UNI-T UTI260B Thermal Imager Camera 256px x 192px. Definitely want to get myself one of those!
This video is awesome. This guy built his own SSD! Custom 2.5-inch IDE SSD Assembly and Testing
So it turns out that in competition to the Maxitronix stuff that I was interested in there were a bunch of competing kits from Radio Shack / Tandy.
A great Wikipedia page about solder alloys, including info about melting points.
There is also this Alloy Temperature Chart with similar info.
So I got myself some of these Speedy Bend – Resistor Lead Forming Tools. There’s a video on YouTube about how to use them: ProbeMaster Speedy Bends: Axial Lead Forming Tools.