I recently re-designed the circuit boards of the LED assemblies for replacing the regular incandescent light bulbs in the RPM adjustment panels of Beogram 4002 and 4004. The main reason for the re-design was a manufacturer inconsistency in the red-green LEDs that I used in the previous version. This required occasional adjustment of the resistor values to maintain the 'incandescent looks' of these panels. At the same time warm-white LEDs have become much more ubiquitous in recent years, and so I decided to re-design the boards using such warm white LEDs. This shows the new assemblies:
I recorded a video that shows how to install them. Enjoy!:
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