Product Overview
Vintage 0.300" Red Common-Anode Numeric Readout | DIP-14
Condition
Unused new old stock (NOS). Visual inspection confirms straight terminal pins and an intact display face. Markings legible: 276-053, 5082-7730. Sold each.
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Product Overview
Archer 276-053 is a 0.3-inch red 7-segment LED numeric display manufactured by Hewlett-Packard under part number 5082-7730 for Radio Shack distribution. Built with a common-anode configuration and left-hand decimal point, it mounts directly into standard 14-pin DIP sockets for vintage digital readouts, test equipment panels, and breadboard logic projects.
Key Features
- 0.3-inch (7.6 mm) character height with high-contrast red diffusing segments
- Common anode circuit arrangement with redundant anode connections on pins 3 and 14
- Standard 14-pin DIP footprint with 0.300-inch row spacing
- Left-hand decimal point (LHDP) layout
- 1.6V typical forward voltage drop per segment
- 25 mA maximum continuous forward current per segment
- Black display face for enhanced segment contrast
- Direct cross-reference to Hewlett-Packard 5082-7730
Applications
- Replacing failed numeric displays in vintage bench frequency counters, digital clocks, and test meters.
- Building retro digital indicator panels for homebrew 6502, Z80, or discrete TTL logic designs.
- Prototyping multi-digit readouts on solderless breadboards driven by 74LS47 common-anode decoders.
Frequently Asked Questions
What is the pin layout for this display?
It uses a 14-pin DIP footprint where pins 3 and 14 serve as common anodes. Pins 1, 2, 6, 7, 8, 10, 11, and 13 connect to the individual segment cathodes and left-hand decimal point. Pins 4, 5, and 12 are unpopulated, and pin 9 is not connected internally.
Can this display be driven from a 5V logic supply?
Yes, when paired with series current-limiting resistors or an open-collector decoder such as the 74LS47. With a 1.6V forward voltage drop, resistors sized between 150 and 330 ohms maintain segment current safely under the 25 mA continuous limit.
Does the Archer 276-053 directly replace the Hewlett-Packard 5082-7730?
Yes. The module body carries the 5082-7730 marking and shares identical electrical ratings, physical pinout, and 0.3-inch character dimensions with the HP original.
Before microcontrollers drove miniature screens, seven red segments and a decimal point were all a circuit needed to speak. Drop this display into your 14-pin socket and bring that vintage readout back to life.
