All public circuits

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	12V Battery Detector PUBLIC This battery level indicator offers (5) LEDs that light up progressively as the voltage increases by spyclub \| updated June 10, 2013 battery-detector electroscematics_com
	12v chager PUBLIC by kingdragon6977 \| updated November 11, 2012
	12V fan thermostat PUBLIC Using transistor as thermistor to control 80mm cooling fan speed. by febb \| updated May 01, 2015
	12V I/O Same line PUBLIC by scarittagle \| updated August 23, 2022
	12V LED Light with OP AMP PUBLIC by febb \| updated April 28, 2021
	12V LED strip driver from USB power PUBLIC 12V LED strip driver from USB power using small MOSFET. by febb \| updated November 20, 2016
	12v light timer PUBLIC Light timer with on/off and extend cycle main power decoupler is shown but currently does not permit normal operation. by D6537495 \| updated May 22, 2013
	12V Power Supply PUBLIC by Novellus \| updated May 27, 2013
	12V Relay Launch Controller PUBLIC Based on http://archive.rocketreviews.com/reviews/all/scratch_launcher.shtml by compwright \| updated January 04, 2022
	12v to 5v 100 mA Linear Regulator PUBLIC A small, quiet, and simple regulator circuit to provide correct bias voltage to a dynamic microphone when replacing an electret microphone for amateur radio use. by w6wwr \| updated August 22, 2025 12v-to-5v 78l05 linear regulator voltage-regulator
	12v to 9v using LM317 PUBLIC A 9v supply from a 12v battery. Long lasting, lowered voltage. Formula for Vout is as shown, or - ((Vout/1.25) -1)*R2=R1+R3 R3 was originally a 1k potentiometer, but i changed all resistor values to... by optimus_mime \| updated March 13, 2012
	12v vs 3.3v PUBLIC by james84aguilar \| updated June 14, 2024
	12v zener PUBLIC by Tyson32 \| updated April 03, 2019
	12VDC Power Supply PUBLIC by Novellus \| updated May 27, 2013
	12VDC zener supply from 120VAC PUBLIC by sheehansm \| updated February 11, 2014
	12vnaar5v PUBLIC by po203 \| updated March 12, 2013
	13 PUBLIC by nating \| updated July 11, 2013
	13 PUBLIC by loudenk \| updated February 06, 2013
	13 PUBLIC by nating \| updated July 11, 2013
	13 PUBLIC by rjose \| updated May 23, 2024

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	12V Battery Detector PUBLIC This battery level indicator offers (5) LEDs that light up progressively as the voltage increases by spyclub \| updated June 10, 2013 battery-detector electroscematics_com
	12v chager PUBLIC by kingdragon6977 \| updated November 11, 2012
	12V fan thermostat PUBLIC Using transistor as thermistor to control 80mm cooling fan speed. by febb \| updated May 01, 2015
	12V I/O Same line PUBLIC by scarittagle \| updated August 23, 2022
	12V LED Light with OP AMP PUBLIC by febb \| updated April 28, 2021
	12V LED strip driver from USB power PUBLIC 12V LED strip driver from USB power using small MOSFET. by febb \| updated November 20, 2016
	12v light timer PUBLIC Light timer with on/off and extend cycle main power decoupler is shown but currently does not permit normal operation. by D6537495 \| updated May 22, 2013
	12V Power Supply PUBLIC by Novellus \| updated May 27, 2013
	12V Relay Launch Controller PUBLIC Based on http://archive.rocketreviews.com/reviews/all/scratch_launcher.shtml by compwright \| updated January 04, 2022
	12v to 5v 100 mA Linear Regulator PUBLIC A small, quiet, and simple regulator circuit to provide correct bias voltage to a dynamic microphone when replacing an electret microphone for amateur radio use. by w6wwr \| updated August 22, 2025 12v-to-5v 78l05 linear regulator voltage-regulator
	12v to 9v using LM317 PUBLIC A 9v supply from a 12v battery. Long lasting, lowered voltage. Formula for Vout is as shown, or - ((Vout/1.25) -1)*R2=R1+R3 R3 was originally a 1k potentiometer, but i changed all resistor values to... by optimus_mime \| updated March 13, 2012
	12v vs 3.3v PUBLIC by james84aguilar \| updated June 14, 2024
	12v zener PUBLIC by Tyson32 \| updated April 03, 2019
	12VDC Power Supply PUBLIC by Novellus \| updated May 27, 2013
	12VDC zener supply from 120VAC PUBLIC by sheehansm \| updated February 11, 2014
	12vnaar5v PUBLIC by po203 \| updated March 12, 2013
	13 PUBLIC by nating \| updated July 11, 2013
	13 PUBLIC by loudenk \| updated February 06, 2013
	13 PUBLIC by nating \| updated July 11, 2013
	13 PUBLIC by rjose \| updated May 23, 2024

12V Battery Detector PUBLIC

12v chager PUBLIC

12V fan thermostat PUBLIC

12V I/O Same line PUBLIC

12V LED Light with OP AMP PUBLIC

12V LED strip driver from USB power PUBLIC

12v light timer PUBLIC

12V Power Supply PUBLIC

12V Relay Launch Controller PUBLIC

12v to 5v 100 mA Linear Regulator PUBLIC

12v to 9v using LM317 PUBLIC

12v vs 3.3v PUBLIC

12v zener PUBLIC

12VDC Power Supply PUBLIC

12VDC zener supply from 120VAC PUBLIC

12vnaar5v PUBLIC

13 PUBLIC

13 PUBLIC

13 PUBLIC

13 PUBLIC

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