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Full Version: Woodstock Series - Display Brightness Question
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I have a few of the Woodstock series and have one that has a dimmer display. Is this there a simple way to increase the
brightness of the display (resistor change or something)? Is this common that some displays are dimmer? My others in this
series have brighter displays.

I've noticed this too. I have two HP-21 models. One has a "16" as a starting serial number (1976 model) and the other has 17. The 17 has a dimmer display than the 16 model when using the same battery pack. I don't know what, if anything, is different inside though.