; noise emitter (off) can be crafted with the following recipes

Autolearned
Player Recipe
Primary skill used: electronics(1)
Required skills: N/A
Time to complete: 15 minutes
Tools required:
> 1 tool with screw driving quality of 1
> soldering iron (5 charges) OR integrated toolset (5 charges)
Components required:
> 1x radio (off) OR 1x two-way radio OR 1x talking doll OR 1x talking doll OR 1x stereo system OR 1x chime loudspeakers OR 1x back-up beeper
> 2x amplifier circuit
> 5x solder
Byproducts:
(none)
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This recipe can be found in the following books when electronics is at least the required level:
Amateur Home Radio for Enthusiasts (level 1)
AAA Guide (level 2)

Player Recipe
Primary skill used: electronics(2)
Required skills: N/A
Time to complete: 30 minutes
Tools required:
> 1 tool with screw driving quality of 1
> soldering iron (10 charges) OR integrated toolset (10 charges)
Components required:
> 2x amplifier circuit
> 1x antenna
> 5x scrap metal
> 7x copper wire
> 10x solder
Byproducts:
(none)
--
This recipe can be found in the following books when electronics is at least the required level:
AAA Guide (level 2)