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The “artistic” rats’ nest is one way to do it. Here’s another:
This is the prototype for my “High Efficiency” AM transmitter oscillator and final. This took more effort since I made a cheap and dirty PC prototyping board. I hand painted dots and lines on a PC board and etched it to produce the proto substrate. The parts are top soldered on the board. This is better than the rat’s nest but it is difficult to use with ICs so the IC part of the board is rat’s nested. Changing parts is very easy with this approach.
Prototype boards similar to this can be purchased but I just made this from my junk box.
Early in my career I had a lab in a basement corner of an old hospital and my workbench was a 2×3 foot wood table. The whole place was a shared lab and very messy so the rat’s nest prototyping fit right in. My boss, a MD, once commented at a Board of Trustees’ meeting “Neil just throws parts on the table and stirs them with a soldering iron and out comes a working circuit!”. Some things never change.