front panel LED help sought

Howdy gents, On Wed, Jan 14, 2015 at 3:28 PM, Alexandre Souza < alexandre.tabajara at gmail.com> wrote: As one who has recently rebuilt an early 70s Altair 8800, I can inform you that a great deal has changed, in the LED world. The very inexpensive 'standard' red LEDs which I obtained to replace the failed units in the Altair were magnitudes brighter than the original parts, when fed from the same power sources. I ended up having to increase the value of the series resistors by hundreds or even thousands of ohms, just to maintain a similar level of brightness vs. the old LEDs. I'd have to take a look inside, but I believe the values jumped from 300R to several K in most cases. The new tech is so much more efficient than the stuff kicked-out in the 70s!