Projects, Designs, and Technical Stuff

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	Hack to convert from/to 110V to/from 220V main voltage. Basics guide & Examples « 1 2 3 All »	Zucca	54 Replies 106867 Views	December 12, 2017, 12:23:57 am by james_s
	Want to hear the bat flying in the front yard « 1 2 3 All »	RoGeorge	54 Replies 23382 Views	July 27, 2024, 05:58:49 am by RoGeorge
	Sparkfun ALC,"less expensive than hiring a contractor or employee to design pcb" « 1 2 3 All »	nuclearcat	54 Replies 10145 Views	November 02, 2020, 02:47:20 am by T3sl4co1l
	Issues with metal contacts onto PCBs « 1 2 3 All »	mikeselectricstuff	54 Replies 18235 Views	March 14, 2015, 04:26:30 pm by IHITech
	1200 baud data transfer over audio passband of cellphone. Is that possible? « 1 2 3 All »	sv3ora	54 Replies 5204 Views	November 15, 2019, 09:08:02 am by sv3ora
	Empty water bottle detector « 1 2 3 All »	rexxar	54 Replies 17906 Views	November 26, 2013, 06:16:38 pm by rexxar
	Why are DMM fuse so expensive « 1 2 3 All »	kuon	54 Replies 10233 Views	November 25, 2023, 01:02:32 am by johansen
	A hearing Aid Amplifier « 1 2 3 All »	Md Mubdiul Hasan	54 Replies 20235 Views	January 10, 2017, 07:45:45 am by Md Mubdiul Hasan
	1meg to 50ohm Impedance Matching Amplifier for general instrumentation use « 1 2 3 All »	Insatman	54 Replies 32226 Views	February 08, 2022, 04:41:07 pm by David Hess
	High voltage precision source for calibration « 1 2 3 All »	caall99	54 Replies 22537 Views	July 08, 2017, 06:55:45 pm by Zero999
	PC high-current PWM fan controller issues « 1 2 3 All »	ratdude747	54 Replies 15379 Views	August 30, 2018, 05:56:09 am by xani
	Electronic load kit - feature ideas? « 1 2 3 All »	c4757p	54 Replies 18999 Views	March 24, 2013, 07:41:46 pm by akcoder
	uSupply Firmware Released « 1 2 3 All »	EEVblog	54 Replies 12364 Views	June 04, 2020, 11:05:47 am by NivagSwerdna
	Why I can not do it even after more than 30 years « 1 2 3 All »	ali_asadzadeh	54 Replies 11824 Views	July 05, 2017, 07:58:54 pm by Siwastaja
	Battery balancing - big cells « 1 2 3 All »	Miyuki	54 Replies 9521 Views	April 24, 2018, 01:18:28 pm by paulca
	Are accurate clocks really the limiting factor in cheap Inertial Navigation? « 1 2 3 All »	rs20	54 Replies 7894 Views	March 30, 2019, 10:21:05 pm by StillTrying
	Static discharge using Lasers. « 1 2 3 All »	B.B.Bubby	54 Replies 22500 Views	July 12, 2015, 02:06:26 am by TerraHertz
	Mysterious LED problem...could use some help « 1 2 3 All »	KTP	54 Replies 23549 Views	July 22, 2012, 04:02:41 pm by KTP
	Easiest way to collect some data @50MB/s and dump to computer « 1 2 3 All »	c64	54 Replies 9066 Views	July 19, 2020, 04:57:25 am by c64
	Digital SMPS controller « 1 2 3 All »	blueskull	54 Replies 18579 Views	June 06, 2017, 09:29:37 am by ali_asadzadeh
	System Design Help: fully autonomous quadcopter « 1 2 3 All »	technix	54 Replies 18695 Views	July 30, 2015, 05:48:19 pm by eneuro
	10V Reference (I Did It My Way) No1 « 1 2 3 All »	blackdog	54 Replies 28560 Views	March 18, 2015, 11:20:05 am by blackdog
	Specifications and Design Tolerances « 1 2 3 All »	gnuarm	55 Replies 8797 Views	November 29, 2022, 05:26:45 pm by gnuarm
	FCC/EMC/CE compliance, Product vs Kit, do I actually need it? « 1 2 3 All »	johnnyfp	55 Replies 25697 Views	September 08, 2015, 03:55:24 am by Bud
	Interpolating Complex Numbers « 1 2 3 All »	jaxbird	55 Replies 31587 Views	January 26, 2015, 02:26:10 pm by jaxbird
	3 Dollar Precision Frequency Standard « 1 2 3 All »	paulie	55 Replies 34604 Views	April 27, 2020, 03:35:11 am by WattsThat
	PSA: do not use the TPS61099 boost reg in your designs « 1 2 3 All »	jeremy	55 Replies 10639 Views	January 25, 2019, 06:43:46 am by JPortici
	High reliability vacuum tube Manufacturer? « 1 2 3 All »	qwaarjet	55 Replies 16529 Views	May 02, 2014, 01:09:19 am by David Hess
	Bypassing large electro's with smaller caps « 1 2 3 All »	GK	55 Replies 17873 Views	March 07, 2013, 04:09:27 am by GK
	Corrupted Forum Thread ?? « 1 2 3 All »	JacquesBBB	55 Replies 18908 Views	September 22, 2015, 05:39:57 am by drws
	Tiny VFD clock « 1 2 3 All »	Mad_Hank	55 Replies 23247 Views	November 19, 2013, 11:13:41 pm by Mad_Hank
	(Video) Free Energy & Over-unity Charging Circuit - The Scientific Method « 1 2 3 All »	Hugoneus	55 Replies 26749 Views	August 30, 2015, 02:45:09 am by tec5c
	Tesla hairpin circuit explanation? « 1 2 3 All »	DejanC	55 Replies 2992 Views	August 20, 2024, 04:37:32 pm by Terry Bites
	good books on vacuum tube design? « 1 2 3 All »	sarepairman2	55 Replies 18180 Views	February 11, 2016, 12:08:09 pm by uncle_bob
	Homemade X-Ray Machine: Liftoff « 1 2 3 All »	AutogolazzoJr	55 Replies 12078 Views	November 15, 2018, 09:39:34 pm by cdev
	My arduino powered firework sequencer. This is gonna be a blast. « 1 2 3 All »	usagi	55 Replies 17036 Views	April 23, 2018, 02:45:24 am by texaspyro
	Huge SAFETY CONCERN, DPST switch used HALF mains and HALF DC.... « 1 2 3 All »	peteb2	55 Replies 9996 Views	December 17, 2017, 11:06:29 am by SeanB
	Ideas to block the Wifi AP from neighbours ? « 1 2 3 All »	Kjelt	55 Replies 16426 Views	March 21, 2015, 06:20:32 pm by Kjelt
	DIY reflow oven « 1 2 3 All »	Mikey	55 Replies 37792 Views	October 02, 2012, 02:07:59 pm by T4P
	Find highest value of 4 inputs without microcontroller? « 1 2 3 All »	petersanch	55 Replies 7253 Views	November 21, 2018, 05:27:14 am by not1xor1


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