Junk box
A ham's collection of spare parts for building and repair.
A junk box is a collection of spare parts and old equipment kept by amateur radio operators (hams) to assist in building and repairing their station. Typical items include electronic components such as resistors and capacitors, as well as small mechanical parts like screws, nuts, and bolts, along with surplus, cast-off, or used electronic gear. Radio amateurs who construct their own equipment, known as homebrewers, often have large or well-stocked junk boxes.
- Typical items
- resistors, capacitors, transistors, meters, speakers, wire, cable, screws, nuts, bolts
- Common sources
- hamfests, surplus stores, electronic swapmeets, dumpster diving
- Size range
- small cardboard or plastic boxes to large collections filling garages and outbuildings
- Example project
- The 'Junker' Amplifier from QST, Oct 1970
Lore & Background
According to some hams, a well-stocked junk box is a requirement for anyone who likes to build, repair, or tinker with radio equipment and electronic gear. Keeping an ample supply of spare electronic components provides the ham with parts to build a variety of electronic projects, as well as spares for repairs. Cannibalizing or removing parts from old equipment is sometimes the only way to obtain certain types of parts, either because they are no longer made or can only be ordered in large quantities. Cast-off or used electronic equipment makes especially good additions to a junk box; what non-hams may see as junk, hams often see as treasure.
Homebrewing is a slang term in amateur radio referring to building an alternative to a commercially available piece of equipment or accessory by hand. Homebrewers often naturally maintain a sizeable junk box, and amateur radio publications have employed the term in DIY project articles such as 'The Junker Amplifier' from QST, Oct 1970, an RF amplifier built from scrounged and junk-box parts. Many hams derive satisfaction from having an especially large junk box full of exotic and hard-to-find components, while others feel that the act of tracking down parts is half the fun.
Reader's Guide
The junk box is a foundational concept in amateur radio, particularly for homebrewers who build their own equipment. The source article emphasizes that a well-stocked junk box is considered by some hams to be a requirement for anyone who likes to build, repair, or tinker with radio gear. It serves as a practical resource for obtaining parts that may no longer be manufactured or are only available in large quantities, making cannibalization from old equipment a key method of acquisition. The junk box also fosters a culture of resourcefulness and community, with hams trading, buying, scrounging, or salvaging parts at hamfests, surplus stores, electronic swapmeets, and even through dumpster diving. The term appears in amateur radio publications, such as the October 1970 issue of QST, which featured a project called 'The Junker Amplifier' built from scrounged and junk-box parts. The junk box's legacy lies in its role as both a practical tool and a source of satisfaction for hams, who may take pride in a large collection of exotic components or enjoy the hunt for parts as much as the building itself.
Did You Know?
- A junk box may contain surplus, cast-off, or used electronic gear.
- Hamfests, surplus stores, electronic swapmeets, and dumpster diving are venues for hams to acquire junk box items.
- The 'Junker' Amplifier from QST, Oct 1970, was built from scrounged and junk-box parts.
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