He figured that a high-powered LED would do the trick, so he ordered a handful of parts and went about his first retrofit. Using his oscilloscope, he found that the control board pulses the high ...

The research was led by Prof ... Bipolar devices, such as pn diodes and bipolar junction transistors, hold promising ...

The RCA tunnel diode inverter circuit The resulting circuit produces a 15kHz oscillation with 4.5v peaks, and has just enough power to light an LED. While it might seem pointless to barely light ...