Projects, Designs, and Technical Stuff

Projects, Designs, and Technical Stuff

Show off your projects you are working on. Talk about designs or ideas, ask technical questions, and share technical information.

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Help with DIY Spectrum analyzer IF filter

Started by Warsp on 28 Nov, 2024 06:22
Last post by Warsp on 03 Dec, 2024 10:15

Views: 4821, Replies: 26
A box which receives ADS-B and emits it as RS232 RS422 or ARINC429

Started by peter-h on 29 Nov, 2024 11:01
Last post by jc101 on 03 Dec, 2024 09:13

Views: 3419, Replies: 18
Replacement display board for Keithley 197A

Started by alx2009 on 11 Jun, 2022 22:03
Last post by MathWizard on 03 Dec, 2024 04:17

Views: 19002, Replies: 37
DIY Evaluation ADS8354, 16-bits/ dual channels/ 700 ksps

Started by MasterT on 01 Dec, 2024 00:13
Last post by gnif on 03 Dec, 2024 00:35

Views: 4333, Replies: 25
Fixing tiny banana plug with broken ring for Cadex SmartCable

Started by victorhooi on 02 Dec, 2024 10:00
Last post by tooki on 02 Dec, 2024 22:11

Views: 1169, Replies: 4
stability and phase margin in ltspice op amps

Started by apraxophobia on 01 Dec, 2024 14:36
Last post by iMo on 02 Dec, 2024 20:35

Views: 1612, Replies: 8
Design review of a temp/timer/water-level control circuit

Started by Shay on 06 Nov, 2024 19:49
Last post by Shay on 02 Dec, 2024 19:29

Views: 1921, Replies: 8
Issue with Audio DAC (PCM1681)

Started by Saimoun on 11 Sep, 2020 13:06
Last post by lordkex on 02 Dec, 2024 18:47

Views: 6278, Replies: 15
IC i.d. please. 50pin, 1980's

Started by EyeDontKnow on 20 Nov, 2024 21:49
Last post by pcprogrammer on 02 Dec, 2024 17:58

Views: 5743, Replies: 36
Ceramic Loop antenna front end-Match tuning-Filtering

Started by electronx on 02 Dec, 2024 10:38
Last post by ftg on 02 Dec, 2024 12:59

Views: 753, Replies: 3
Solved: Please identify this 0603 component (it's Kyocera AVX RF MLO)

Started by hanakp on 30 Sep, 2024 09:19
Last post by tszaboo on 02 Dec, 2024 12:28

Views: 2356, Replies: 10
PCB stackup for controlled impedance across manufacturers

Started by ricko_uk on 29 Nov, 2024 22:45
Last post by ftg on 02 Dec, 2024 11:48

Views: 605, Replies: 1
Low-cost wiring+connector options for multi-drop bus connecting ~100 small PCBs

Started by mark03 on 30 Nov, 2024 03:53
Last post by nali on 02 Dec, 2024 09:56

Views: 2183, Replies: 10
Massive VICOR module failure

Started by atum on 02 Dec, 2024 09:26

Views: 655, Replies: 0
Ive never seen a circuit board made like this

Started by larrybl on 26 Oct, 2024 21:10
Last post by KE5FX on 02 Dec, 2024 05:25

Views: 11431, Replies: 54
Hacking the Bosch GLM 20 Laser Measuring Tape

Started by STMartin on 29 Sep, 2017 03:36
Last post by jgustavoam on 02 Dec, 2024 00:12

Views: 86371, Replies: 97
My frequency counter

Started by Analog Kid on 01 Dec, 2024 05:31
Last post by Analog Kid on 01 Dec, 2024 22:26

Views: 2643, Replies: 9
[Schematic Review Request] FPGA Development board + FPGA SOM power supply

Started by HasanSyr on 01 Dec, 2024 20:38

Views: 561, Replies: 0
Looking for self contained Galileo / GNSS GPSDO module

Started by nctnico on 01 Dec, 2024 18:24

Views: 548, Replies: 0
Building a DIY nano ampere current meter

Started by fracton on 30 Nov, 2024 18:20
Last post by Gyro on 01 Dec, 2024 17:37

Views: 1775, Replies: 2
USB-C based touch display - touch data signal path

Started by Jester on 01 Dec, 2024 11:11
Last post by ataradov on 01 Dec, 2024 17:26

Views: 786, Replies: 1
cheap wideband spectrum analyzer from VGA to HDMI converter and USB HDMI capture

Started by NiHaoMike on 25 Oct, 2024 03:16
Last post by metropolis on 01 Dec, 2024 14:21

Views: 1845, Replies: 7
Generating a 10v rail

Started by cosmicray on 27 Nov, 2024 14:27
Last post by SiliconWizard on 30 Nov, 2024 23:34

Views: 1799, Replies: 9
Old geek encounters a basic resistance testing conundrum

Started by PCGUY on 29 Nov, 2024 19:57
Last post by tooki on 30 Nov, 2024 18:41

Views: 1278, Replies: 6
What's wrong paralleling schottky diodes?

Started by Kokoriantz on 30 Nov, 2024 04:23
Last post by David Hess on 30 Nov, 2024 09:42

Views: 1396, Replies: 4
Help with getting rid of DC ripple

Started by Belgianuser on 28 Nov, 2024 22:48
Last post by Andy Chee on 30 Nov, 2024 05:50

Views: 4583, Replies: 35
Properly power managing VFD displays for better longevity

Started by akasaka on 19 Nov, 2024 05:04
Last post by akasaka on 30 Nov, 2024 02:12

Views: 1410, Replies: 7
Micsig DP700 CMRR measurement using the Bode 100 and the B-AMP12 amplifier.

Started by rbola35618 on 30 Nov, 2024 00:52

Views: 801, Replies: 0
110V DC output battery surge voltage protection

Started by electronx on 26 Nov, 2024 06:38
Last post by moffy on 29 Nov, 2024 23:14

Views: 1510, Replies: 9
Help With Design of 48-Channel Constant Current Sink, and Fault Detection

Started by Monotoba on 02 Nov, 2024 00:02
Last post by pardo-bsso on 29 Nov, 2024 21:31

Views: 4838, Replies: 30
multi gas analyzer full of interesting sensors

Started by oz2cpu on 20 Nov, 2024 08:09
Last post by D Straney on 29 Nov, 2024 16:55

Views: 2160, Replies: 9
Turning off the high side power mosfet without disrupting circuit functionality

Started by electronx on 29 Nov, 2024 14:32
Last post by mtwieg on 29 Nov, 2024 16:14

Views: 550, Replies: 1
Battery SoC estimation

Started by SiliconWizard on 29 Nov, 2024 12:59
Last post by Siwastaja on 29 Nov, 2024 13:40

Views: 1378, Replies: 2
Open Source AlienTek DP100 Firmware

Started by seth.daniels on 28 Nov, 2024 18:32
Last post by coromonadalix on 29 Nov, 2024 10:53

Views: 1535, Replies: 1
GNSS Receiver - Patch Antenna disturbed by Clock Oscillators

Started by µELKO on 29 Nov, 2024 07:28

Views: 546, Replies: 0
Will plug and unplug Computer and Monitor causes computer to hang up and crash

Started by Wilson__ on 26 Nov, 2024 16:17
Last post by Wilson__ on 29 Nov, 2024 07:16

Views: 2044, Replies: 14
RF link for controlling the state of a relay/motor

Started by IoTguy on 28 Nov, 2024 17:24
Last post by Poroit on 29 Nov, 2024 04:08

Views: 521, Replies: 1
USB-C - can I ommit CC1/2 resistors 5k1 to gnd if I use it only for 5V charging?

Started by dusan on 28 Nov, 2024 07:23
Last post by amyk on 29 Nov, 2024 01:26

Views: 4369, Replies: 10
I2C DAC >=12 bits but with lots of addresses?

Started by DenzilPenberthy on 21 Nov, 2024 11:52
Last post by DenzilPenberthy on 28 Nov, 2024 23:21

Views: 1449, Replies: 6
configuring VCO input signal so it will be sensitive in PLL system

Started by john23 on 26 Nov, 2024 21:20
Last post by jwet on 28 Nov, 2024 17:03

Views: 1450, Replies: 5

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Projects, Designs, and Technical Stuff

Projects, Designs, and Technical Stuff

Help with DIY Spectrum analyzer IF filter

A box which receives ADS-B and emits it as RS232 RS422 or ARINC429

Replacement display board for Keithley 197A

DIY Evaluation ADS8354, 16-bits/ dual channels/ 700 ksps

Fixing tiny banana plug with broken ring for Cadex SmartCable

stability and phase margin in ltspice op amps

Design review of a temp/timer/water-level control circuit

Issue with Audio DAC (PCM1681)

IC i.d. please. 50pin, 1980's

Ceramic Loop antenna front end-Match tuning-Filtering

Solved: Please identify this 0603 component (it's Kyocera AVX RF MLO)

PCB stackup for controlled impedance across manufacturers

Low-cost wiring+connector options for multi-drop bus connecting ~100 small PCBs

Massive VICOR module failure

Ive never seen a circuit board made like this

Hacking the Bosch GLM 20 Laser Measuring Tape

My frequency counter

[Schematic Review Request] FPGA Development board + FPGA SOM power supply

Looking for self contained Galileo / GNSS GPSDO module

Building a DIY nano ampere current meter

USB-C based touch display - touch data signal path

cheap wideband spectrum analyzer from VGA to HDMI converter and USB HDMI capture

Generating a 10v rail

Old geek encounters a basic resistance testing conundrum

What's wrong paralleling schottky diodes?

Help with getting rid of DC ripple

Properly power managing VFD displays for better longevity

Micsig DP700 CMRR measurement using the Bode 100 and the B-AMP12 amplifier.

110V DC output battery surge voltage protection

Help With Design of 48-Channel Constant Current Sink, and Fault Detection

multi gas analyzer full of interesting sensors

Turning off the high side power mosfet without disrupting circuit functionality

Battery SoC estimation

Open Source AlienTek DP100 Firmware

GNSS Receiver - Patch Antenna disturbed by Clock Oscillators

Will plug and unplug Computer and Monitor causes computer to hang up and crash

RF link for controlling the state of a relay/motor

USB-C - can I ommit CC1/2 resistors 5k1 to gnd if I use it only for 5V charging?

I2C DAC >=12 bits but with lots of addresses?

configuring VCO input signal so it will be sensitive in PLL system

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