| 摘要 |
A LED cartridge assembly for use in a polarity testing probe fits into a cavity in the handle of the probe with first and second assembly contacts to contact the first and second testing probe contacts, respectively. The handle is transparent through to the cavity. The assembly has two LEDs, the first LED conducting when current flows in one direction, the second LED conducting when current flows in the opposite direction. The assembly has a transparent holder with wells to receive the LEDs. The assembly has a spring contact at one end and a button contact at the other. The assembly can be used to easily convert existing non-polarity testing probes to polarity testing probes. The assembly can be used with packages that contain two LEDs as an integrated unit for placement in a single well of the holder.
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