1N4148 Signal Diode - 10 pack
This is a set of 10 of the common 1N4148 signal diode that can be used for signals up to 200mA of current.
Diodes control directional current valves and have the benefit of being smaller than vacuum tubes.
These Classic 1N4148's are great for any kind of small signal (not power!) rectification. Check the datasheet for more information.