My replica of the Power Cell used by Harry and Chakotay in "Timeless" and again in "Memorial" by Harry.
An adjustable potentiometer controlls the flash rate of the flip-flop LED circuit powering the central red and yellow 2mm LEDs.
The flip flop circuit and the 5mm green LED are powered by a 12v 23A keyfob battery.
This prop was briefly seen used as a medical device, with the underside showing, by the EMH, in "Macrocosm".
An adjustable potentiometer controlls the flash rate of the flip-flop LED circuit powering the central red and yellow 2mm LEDs.
The flip flop circuit and the 5mm green LED are powered by a 12v 23A keyfob battery.
This prop was briefly seen used as a medical device, with the underside showing, by the EMH, in "Macrocosm".