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.

• Sticky Topics

• Analog Filters: a Compilation of Standard Transfer Functions (UPDATED 2)

  Started by Benta on 22 Jan, 2021 20:15
  Last post by Jesse_G_EE on 14 Jun, 2024 16:30

  Views: 94974, Replies: 23

• Topics

• properly using HMC8193 I/Q mixer allowed power levels

  Started by john23 on 27 Sep, 2024 14:34
  Last post by eutectique on 27 Sep, 2024 15:57

  Views: 60, Replies: 1

• Different die pictures

  Started by Noopy on 01 Jul, 2020 21:46
  Last post by bsdphk on 27 Sep, 2024 15:51

  Views: 116610, Replies: 366

• Looking for transistor-based 32kHz quartz test circuit

  Started by VinzC on 23 Sep, 2024 16:39
  Last post by VinzC on 27 Sep, 2024 15:15

  Views: 770, Replies: 14

• Vacuum Fluorescent Display Driver

  Started by bostonman on 09 Apr, 2024 03:31
  Last post by bostonman on 27 Sep, 2024 13:54

  Views: 28838, Replies: 155

• How to make a one-transistor bjt amplifer work over 3.3 to 4.2 V Vout=1-V

  Started by Salome2 on 25 Sep, 2024 07:36
  Last post by Salome2 on 27 Sep, 2024 13:08

  Views: 830, Replies: 22

• On using a single Ethernet cable for communication and two activity LEDs

  Started by squadchannel on 27 Sep, 2024 01:28
  Last post by Nominal Animal on 27 Sep, 2024 12:48

  Views: 293, Replies: 5

• good transistor tester in the <300$ range

  Started by coppercone2 on 26 Sep, 2024 10:02
  Last post by HarryDoPECC on 27 Sep, 2024 12:40

  Views: 481, Replies: 7

• Opamps for audio: What's the voltage noise king these days (late 2024)?

  Started by cvanc on 25 Sep, 2024 12:40
  Last post by magic on 27 Sep, 2024 11:46

  Views: 436, Replies: 3

• Trying to improve an old generic chinese PSU

  Started by ElectronSurf on 26 Sep, 2024 20:54
  Last post by ElectronSurf on 27 Sep, 2024 11:12

  Views: 229, Replies: 2

• 3-phase diode bridge - 6 separate windings

  Started by Nix2 on 21 Sep, 2024 11:11
  Last post by Nix2 on 27 Sep, 2024 11:11

  Views: 755, Replies: 12

• Bluetooth rotary phone from PTT T65

  Started by Zipdox on 25 Sep, 2024 23:42
  Last post by PlainName on 27 Sep, 2024 10:20

  Views: 755, Replies: 21

• My Advanced Realistic Humanoid Robots Project

  Started by artbyrobot on 01 May, 2024 20:21
  Last post by artbyrobot on 27 Sep, 2024 09:54

  Views: 5381, Replies: 48

• Highside MilliCurrent

  Started by sourcecharge on 26 Sep, 2024 03:13
  Last post by Kleinstein on 27 Sep, 2024 09:36

  Views: 516, Replies: 9

• HP HSTNS-PD43 PSU Hack & Feedback Circuit (Partial)

  Started by Trurl on 29 May, 2024 01:00
  Last post by zheka64 on 27 Sep, 2024 09:20

  Views: 2556, Replies: 22

• Relatively high voltage precision DAC amplification

  Started by Laval on 22 Sep, 2024 19:47
  Last post by peter-h on 27 Sep, 2024 07:21

  Views: 2441, Replies: 52

• An interesting 3-transistor PSU from the old USSR "Radio" magazine

  Started by Aramp on 22 Sep, 2024 20:26
  Last post by enut11 on 27 Sep, 2024 01:05

  Views: 1283, Replies: 26

• Photodiode choice and transimpedence amplifier design for measuring light pulses

  Started by amaschas on 26 Sep, 2024 22:35
  Last post by tggzzz on 26 Sep, 2024 23:45

  Views: 160, Replies: 2

• has anyone tried to make a vacuum tube in space?

  Started by coppercone2 on 25 Sep, 2024 02:00
  Last post by Conrad Hoffman on 26 Sep, 2024 19:19

  Views: 1028, Replies: 19

• Does anyone here use docbook?

  Started by coppice on 19 Sep, 2024 18:37
  Last post by Doctorandus_P on 26 Sep, 2024 17:02

  Views: 635, Replies: 9

• Building a poor man's Time Domain Reflectometer

  Started by Krampmeier on 02 Apr, 2016 11:39
  Last post by rneifeld on 26 Sep, 2024 16:25

  Views: 27794, Replies: 50

• How to design the pulse generator correctly...

  Started by Folnia on 26 Sep, 2024 14:16
  Last post by tggzzz on 26 Sep, 2024 15:12

  Views: 196, Replies: 2

• current and slave select pins

  Started by joniengr081 on 26 Sep, 2024 08:22
  Last post by Siwastaja on 26 Sep, 2024 14:43

  Views: 392, Replies: 10

• DAB radio / Bigger (external) screen

  Started by PinheadBE on 23 Sep, 2024 13:35
  Last post by PinheadBE on 26 Sep, 2024 06:55

  Views: 599, Replies: 10

• Software TCR compensation of shunt in DIY electronic load

  Started by RandomUser on 25 Sep, 2024 18:18
  Last post by Kleinstein on 26 Sep, 2024 06:51

  Views: 213, Replies: 3

• Car battery to 5V microcontroller as input.

  Started by siclano on 25 Sep, 2024 12:52
  Last post by Andreas on 26 Sep, 2024 05:27

  Views: 258, Replies: 3

• Decapping and Chip-Documentation - Howto

  Started by Noopy on 03 Sep, 2019 22:09
  Last post by Noopy on 26 Sep, 2024 02:34

  Views: 51400, Replies: 230

• Debugging a new Sigrok Pulseview Protocol Decoder -- where is the error log?

  Started by AndySymons on 24 Sep, 2024 18:07
  Last post by bson on 25 Sep, 2024 20:31

  Views: 347, Replies: 6

• fast switching high current power supply

  Started by vixo on 18 Jun, 2024 16:09
  Last post by vixo on 25 Sep, 2024 19:39

  Views: 2203, Replies: 25

• Electronic load precision

  Started by ifonlyeverything on 25 Sep, 2024 11:35
  Last post by RandomUser on 25 Sep, 2024 19:09

  Views: 488, Replies: 8

• Reverse engineering the FNIRSI 1014D

  Started by pcprogrammer on 09 May, 2024 19:41
  Last post by pcprogrammer on 25 Sep, 2024 14:13

  Views: 7522, Replies: 50

• Tips for Durable >20 Pin Connector

  Started by vladrov on 24 Sep, 2024 15:00
  Last post by vladrov on 25 Sep, 2024 13:39

  Views: 523, Replies: 9

• HSTNS-PL28 to 13.8v mod?

  Started by Fizfi on 22 Dec, 2022 06:30
  Last post by pienari on 25 Sep, 2024 12:15

  Views: 1526, Replies: 3

• What's your opamp dual supply from single supply jellybean solution?

  Started by dusan on 18 Sep, 2024 15:15
  Last post by Zero999 on 25 Sep, 2024 12:14

  Views: 1802, Replies: 31

• Diodes Inc AP62300

  Started by hpmaxim on 13 Feb, 2022 01:58
  Last post by ArdWar on 25 Sep, 2024 11:10

  Views: 2226, Replies: 12

• Recommendation Request - Neg to Pos regulator

  Started by rfdes on 23 Sep, 2024 15:25
  Last post by Zero999 on 25 Sep, 2024 09:29

  Views: 433, Replies: 7

• Simcom module selection

  Started by Martin Opresnik on 25 Sep, 2024 08:43

  Views: 77, Replies: 0

• help with reducing consumption for very small motor / low voltage buck

  Started by pommil on 25 Sep, 2024 00:33
  Last post by Siwastaja on 25 Sep, 2024 07:00

  Views: 189, Replies: 3

• Replacement firmware for Dyson V10 Batteries

  Started by davidmpye on 20 Jul, 2023 21:00
  Last post by Tony1s on 25 Sep, 2024 01:47

  Views: 35279, Replies: 45

• Rotary switch (power + position combo)

  Started by okw on 24 Sep, 2024 19:25
  Last post by inse on 25 Sep, 2024 01:32

  Views: 351, Replies: 5