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Tape Tech / Re: Studer meter bulb replacement
« on: December 30, 2015, 11:29:45 AM »
There was a standard for that buff color one sees on classic VU meters, but I can't seem to google it. The color temp of the meter lighting no doubt influenced the decision when it was established, and that light source would of course have used tungsten filaments. The spectral bandwidth of white LEDs is somewhat limited, and I don't think you will be able to match the color temp of the original tungsten filaments exactly. White leds in general are rather more blue than direct sunlight, up around 6000K - 6500K vs about 2700K for tungsten bulbs. Amber LEDs are pure yellow-orange, typically around 592 nM, which would probably be too intense yellow color-wise. What you might want is a warm white led, which is an attempt at matching the tungsten filament spectrum and typically around 2700-3000K.