Today's electronics enthusiast is limited only by their imagination. Cutting-edge technology is available for pennies from mammoth distribution houses and datasheets and applications notes are readily available on the Internet at no cost at all. The following entries represent just a few of the applications where PCB Singles may help individuals turn their designs into working implementations by making PCB prototypes accessible.

Lego Mindstorms is a line of Lego sets combining programmable bricks with electric motors, sensors, Lego bricks, and Lego Technic pieces (such as gears, axles, beams, and pneumatic parts) to build robots and other automated or interactive systems. The protocols used by the bricks are being made available and enthusiasts are creating and integrating their own bricks with factory bricks.

Chipamp or Gainclone is a term commonly used to describe a type of audio amplifier made by do-it-yourselfers, or individuals interested in DIY audio. It is a design based on high-power integrated circuits, particularly the LM3875 from National Semiconductor. The Chipamp is probably the most commonly built and well-known amplifier project amongst enthusiasts. It is simple to build and involves only a few readily accessible, inexpensive parts. As an amplifier, it is highly regarded by many in the DIY community.

The word "beam" in BEAM robotics is an acronym for Biology, Electronics, Aesthetics, and Mechanics. This is a term that refers to a style of robotics that primarily uses simple analog circuits, such as comparators, instead of a microprocessor in order to produce an unusually simple design (in comparison to traditional mobile robots) that trades flexibility for robustness and efficiency in performing the task for which it was designed. BEAM Bots are often one-of-a-kind creations in which enthusiasts apply innovative and non-intuitive approaches to help their creations thrive.

The field of amateur telescope making is considered an offshoot of the amateur astronomy community. Amateur telescope makers (sometimes called ATMs), as their name implies, are not paid professionals. They are enthusiasts who build their telescopes for the enjoyment of the hobby, or so they can make a personal contribution to the field of astronomy.

Home automation (also called domotics) is a field within building automation, specializing in the specific automation requirements of private homes to promote comfort, security and low-effort efficiency. Although many off-the-shelf products used in building automation (light and climate, doors and window shutters, security and surveillance systems, multi-media systems, etc.) also apply to home automation, enthusiasts incorporate additional custom controls to automate plant watering, pet feeding, alerts, etc.

An Induction Coil Launcher uses a solenoid to accelerate an object toward an intended target. The projectile is forced through the middle of a coil by magnetic force induced by an electric current. It is thought that induction coil launchers may one day be used to launch satellites into orbit. Here, an enthusiast has created a low power coil launcher using a flash circuit from a disposable camera.