This PNP transistor is similar to the TR3906, but can deliver higher maximum current at better efficiency ratings.
TR3904 NPN small signal transistor, as used in most basic solarengine designs.
TR3906 PNP small signal transistor, as used in most basic solarengine designs.
This low-voltage N-channel FET is great for powerful solarengine designs.
The ZVP2106 P-channel FET is very good for low-voltage, high efficiency solarengines.
10k Single-turn Potentiometer
This 20k 20-turn trimming potentiometer has the adjustment screw is on the narrow side, opposite the three inline leads.
100k 20-turn 8mm square trimpot
2 Megaohm single-turn potentiometer
10 resistors each of 100ohm, 470ohm, 1k, and 2.2k
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