Supercapacitor
Since capacitors' energy content increases with the square of the voltage, researchers were looking for a way to increase the electrolyte's breakdown voltage. In 1994 using the anode of a 200V high voltage tantalum electrolytic capacitor, David A. Evans developed an "Electrolytic-Hybrid Electrochemical Capacitor". These capacitors combine features of electrolytic and electrochemical capacitors. They combine the high dielectric strength of an anode from an electrolytic capacitor with the high capacitance of a pseudocapacitive metal oxide (ruthenium (IV) oxide) cathode from an electrochemical capacitor, yielding a hybrid electrochemical capacitor. Evans' capacitors, coined Capattery, had an energy content about a factor of 5 higher than a comparable tantalum electrolytic capacitor of the same size. Their high costs limited them to specific military applications.
2N107
The 2N107 was conceived in 1955 by Carl David Todd, who had just joined GE as an engineer. Todd's interest in a hobby/experimental transistor probably originated when he participated in one of the CK722 transistor design contests, while he was an engineering student at Auburn University and finished sixth. The success of the CK722 gave impetus for Carl Todd to convince GE marketing to follow the path of Raytheon, the inventor of the CK722. General Electric had a lot of 2N43 thru 2N45 type transistors that did not meet specifications. Like Norman Krim at Raytheon, Carl Todd wanted to increase GE's transistor market by expanding into the hobbyist market.