I assemble a breakout circuit to measure the battery life of the Mult-LED Joule Thief V2

It is time that I revisit the 2 year old Multi-LED Joule Thief. This time I want to make some improvements for not only efficiency but ease of  assembly.

After selling out of both of the Multi-LED Joule Thief and the Joule Thief Candle on Tindie it became necessary to not only make more but to update both models. Before updating I wanted to make a few measurements of the circuit to better understand how I could increase its performance by changing the resistance of R1 connected to the base of the NPN transistor.