Proton KIPD73A  
Written by Accutron on 2017-03-24  

The KIPD73A is a Soviet-manufactured 12x12mm green LED prototype, produced at the Proton plant in Orel, Russia. This LED has a large water-clear bubble magnifier, heat-staked to a 10x10mm gold-plated heatsink. The die is mounted in a recess at the center of the heatsink. This device is notably brighter and of higher quality construction than most Soviet LEDs, but is still quite dim relative to its apparent thermal dissipation requirements.

Proton KIPD73A 12mm green LED prototype.

KIPD73A, underside construction.

This article is part of the [Discrete Optoelectronics] exhibit.

©2000-2019 The Vintage Technology Association. All rights reserved.