Internet from a screwdriver battery (12 and 9 Volts)

#connect_router #router
In this video you will see how to connect a router from a screwdriver battery.
Voltage regulator L7809 (9 Volts)
If the battery is 18 volts, then L7912, L7812 = 12 volts and L7809 for 9 volts
Power plug 5.5/2.1
Knife clamp, 6.3MM
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