Bi-color red/green LEDs: Disk II read/write????

[buggie@capella.unm.edu (stephen e buggie)]

A store is clearing out bi-color LEDs red/green.   These LEDs have three
wires:  black (negative), red (red +), green (green +).


I want to add the bi-color LED to my Disk II drives, so that it will glow
GREEN for READ, and RED for WRITE.   I already have an AE 3.5" 800K drive
that does this, and it looks nice.   This will be a third enhancement to
Disk II --- "Super Bugg-Drive."

First, what value of resistor should be added?  The ad says these are 2
volt LEDs, and that 20 milliamps should flow through the LED.

Will the 20 milliamps affect the read/write performance of the drive in
any way?

Not sure where in the analog board to connect the LEDs.  Could I attach
the black lead to a ground point, then touch various analog card points
while the disk is reading vs. writing?

Will other components be needed besides the bi-color LED and its padding
resistors?

Would it be simpler to just reconnect the red LED to a point on the analog
board, and then to install a second separate LED to denote WRITE?

Stephen Bugge			buggie@unm.edu