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It's that time of year again; Dayton Hamvention 2026 is rapidly approaching, and on May 15th, 16th, and 17th we will be occupying flea market booth numbers 9440, 9441 and 9442.
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We have made a number of additions to the Technology Museum section of the site: * Displays and Counters: A Monsanto MDA100 LED display module, an early simple display driver for the Monsanto MAN-1. * Triodes & Tetrodes: The Philco 615, a small high frequ…
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Today marks the 20 year anniversary of this website going live.
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We have made several additions to the Technology Museum section of the site: * Vacuum Fluorescent Displays: A trio ofITEL2 electroluminescent displays , rectangular phosphorescent displays that were produced by the Soviet Union in a number of different co…
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Since the Industrial Revolution, much human endeavor has been spent on the problem of building machines to automate math.
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The season of electronics salvage is close at hand; Dayton Hamvention 2025 is rapidly approaching, and on May 16th, 17th, and 18th we will be occupying flea market booth numbers 9440, 9441 and 9442 at the Greene County Fairgrounds.
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We have made a number of additions to the Technology Museum section of the site: * LED Indicators: A Western Electric Trimline LED , an unusual concave package diode used in 1970s telephone systems. * Transistors and Diodes: The Western Electric 20D, a la…
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The point in the marketplace where clock-makers and scientific instrument manufacturers intersect has produced some truly unusual devices, and this recently acquired Jaquet Graphic Chronometer is certainly unusual.
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We have made a number of additions to the Technology Museum section of the site: * Incandescent Displays: A MSC 351-24663-001 alphanumeric fiber optic display fitted with 14 incandescent lamps. * Transistors and Diodes: The Texas Instruments 2N3045, an un…
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It's that time of year again; Dayton Hamvention 2024 is rapidly approaching, and we will once again be occupying flea market booth numbers 9440, 9441 and 9442 at the Greene County Fairgrounds.