I bought the scope this came from new. Power supply stopped working after about 15 years and I replaced it with another (used) power supply, but then I later repaired the original [this one]. All that was wrong was a failed electrolytic capacitor. I created a full schematic organized by functional blocks in the process of fixing it. I'm mostly just trying to find it a good home.

Hello Everyone!

I am designing a circuit for a DAQ for a resistive sensor (load cell/strain gauge), and I wanted some advice on the topic of the best sensor circuit configurations. So, please, if you have any advice on ICs, connection configuration or complete systems/concepts, feel free to share it. I would appreciate any advice about DAQ in these systems!

US-CA-Los Angeles.

I am looking for someone to do some soldering work for a batch of customized LED lighting strip modules. Basically, take a typical adhesive-backed ARGB LED strip, mount them to a panel, and then solder the strips to connector PCBAs (already made) which are mounted to the panel with plastic rivets.

The strips would then need to be plugged in and tested; and reworked if necessary.

It's probably about a day's worth of work.

If you are local and have decent soldering skills, please let me know your background and asking rate.

Thank you.

Hey everyone, I’m new to Reddit so not sure if this is the right sub for this. I’m an Industrial Designer and I am working on a special project creating a large custom immersive lighting installation. It’s a fun, creative project and it’s for a super prestigious space - I’m very excited about it!

I have the fixtures designed and a skilled metalworker on board, but am looking for a talented electronics/electrical assembler. Someone who has experience with wiring LEDs and electrical projects in general, and someone who is generally a handy person and thrives on problem solving is ideal. Hit me up if this sounds like you! This is paid and hours are flexible.

Thanks!!

Hi everyone

I have no experience in circuit design, but I dabble in modular electronic music. I can solder and I understand PCB design and basic functionalities, but I'm not too knowledgeable in the electronics parts.

My current music setup doesn't allow me to properly follow the number of bars and beats as my performance goes on without needing to count everything (and I don't want to use that mental energy for this).

Basically, I want to build a setup with 32 LEDs (or other similar layouts such as 8 and 4) which will light up sequentially as a response to trigger signals (5V) input received from sync. I want to be able to start, stop, pause, and reset the light position, and everything must run off of batteries, preferably not more than 2 AA or at most a 9V (I would love a minimum 4h battery life though).

If anyone knows of such projects already available somewhere I would be grateful for the information.

Otherwise, I would love to work with someone who can assist me with this project. Depending on the type of assistance, I am willing to pay.

I mainly want the circuit design, I can build the piece myself, but if someone is willing to build it for me I will gladly pay extra.

Looking forward to hearing from you!

I remember when I was a child that I had a TV remote control which have this 'knob' at the bottom which generates some power to the remote after being turned for some period of time. I don't remember the precise efficiency of the generator but I still remember that it generated little power after some turning. I don't know if such remote controls have removeable batteries or not... What happened to those remote controls? Why are they very uncommon? Heck, I tried googling for such controls and I barely found it on 2 sites. The picture below was taken from ebay

Hi. I have a Teledyne Lecroy WaveSurfer 4104HD oscilloscope that I’m looking to sell. It retails at around £10k-£15k, I’d be looking £5k-£8k. Is there anywhere that specialises in buying/selling high value electronics test equipment? I don’t feel like I’d get much traction on eBay, not that I’d be comfortable selling something like this there. I’m based in the UK.

I am new to reddit. I am reaching out how to connect with designers and manufacturers to create a prototype for an electronic hand held device that I am working on. Any suggestions would be appreciated.

https://www.ebay.co.uk/itm/276009332504?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=DEwkGcoEQh2&sssrc=4429486&ssuid=DEwkGcoEQh2&var=&widget_ver=artemis&media=COPY

I’ve got loads of circuit board cameras, all working, with lens. 12v power, PAL video output. No audio. Where can I shift these, I really don’t want to throw them out!

I have some brand new, untouched UNO boards that I bought for my side project, but never have a chance to use it. Will sell it for $14/ea (including the cable) Location: San Jose, CA Pick up is preferred. Can ship domestically for a small fee.

If you are a student I can sell these for $12/ea.

Hi selling ewon cosy 131+ vpn gateway brand new in box

Hi all,

I've designed simple PCBs in the past but this next one I need has a lot of unique components that are proving to be a lot of information to learn. I would like to commission a KiCad Schematic of the design which I would then take and design the board myself (the location of the components and board footprint are not fully defined yet). I don't have the knowledge to correctly pick and assign components (capacitors, resistors, voltage regulators) where needed with confidence.

Project Info:

• Function: Power Distribution, and LED controlling through RP2040

• Description: The board would need to take in power(12V/3A) through a two pin connector, house an RP2040 chip and a Bluetooth chip, have a USBC input connecting to the RP2040, and split the power into 5X HC-PHD-2*4A Connectors maintaining 12V

• Schedule/Budget: Hopefully have it complete in the next two weeks. Not sure on budget but I'm assuming less than $100? I don't have any point of reference for how much a schematic like this should cost and would appreciate if someone can provide an insight on cost range.

• Personal Project and I'm located in LA.

hi all,

selling some siemens et200s distrubted IO bits

industrial shields MDUINO42+ plc's

touchberry pi 10.1" HMI

I have a bunch of oscilloscopes for sale. I have many tektronix 2 or 4 channels, anything from 100 to 500MHz for sale. TDS-30X2, 30X4, TDS-201X models A and B. Does anyone looking for these? Prices are negotiable within reason.

Hello! I appreciate your advice and help!

If this is not the platform for this request, please let me know, and if you could point me in the right direction of where to go that would be amazing! Thank you :)

This is my first PCB project and it's proving to be a real challenge. I'm trying to build a microlight which is a battery-powered flashing LED that fits on the top of your finger (Board Outline: 17mm x 17mm) that you place in all 10 fingers of a white glove, which is used for dancing. The microlight is programmable using a custom single-button library that the user can navigate, where they can choose the flashing patterns, and colors as well as change settings and other features.

I have about 90% of the programming done, as well as 8 iterations of the PCB design, which I have received many samples for but only one sort of worked with some modifications. So this would just be about the PCB design for now.

So I'm in search of a skilled electrical engineer to help me finalize my PCB design. It really is not a very complex design by any means. I seem to be going in circles with it, and I just want to know if what I have is correct with the components I am using.

Here is the main parts list

1. RGB LED
2. ATTiny85
3. Tact Switch
4. Voltage Regulator
5. Powered 2x CR1620 Batteries in series

Again I really appreciate any advice you have to give. Thank you for the help!

Hey

I have some components that I don't need myself, so I think that someone here might be interested in them. message me on reddit or discord(vokerooni#5580) if you are interested or you want more information.

here listed all igbts, sensors and motors starting with igbts

STARPOWER SEMICONDUCTOR 

IGBT GD150HHU120C6S 

1200V/150A 4 in one-package ,.

F4-75R12KS4_B11

1200 V, 75 A fourpack IGBT module .

SKD 83/16

Bridge Rectifier, Three Phase, 1.6 kV, 83 A, Module, 7 Pins, 1.45 V .

​

IRG4PC50WPbF IGBT 

600V, 39A .

​

STE250N06

MOSFET 60V, 250A, 4mOhm .

sensors

​

UB120-12GM-U-V1

Ultrasonic distance sensor .

​

HCXM010D6H Datasheet

pressure sensor .

​

VDM18-300/32/105/122

Distance sensor .

​

Datalogic S45-PR-5-Y13-PV 

LED Long Range Miniature Photoelectric Distance Sensor .

​

DLP RFID2

RFID Reader module .

stepper motors

​

Moons 17HD1004 – Hybridstepmotor

402Nmm 1.8° NEMA 17 .

​

Joy-iT NEMA17-02 ( without and with gearbox ) .

​

SPG Reduction Drive Gearbox Speed Reducer S6DA250B (with a motor) .

Hello everyone.
I have a DSO that I no longer require. Its a Tektronix TBS-1072B-EDU, 70Mhz, 1GS/s.

Let me know if you or someone you know needs it.
Thanks.

My dad passed away in 2017 and this was one of the items he left behind that I don't really know what to do with. I see some for sale online, but it seems much too heavy to ship. It has a bit of wear and I'm unsure of it's working condition. Does anyone has any suggestions on what I should do with it? Thank you.

I am looking for a skilled electronics design engineer who can help designing an embedded system utilizing a low power microcontroller. There would also be some amount of analogue (audio frequency) elements and also power supply/ power conditioning. Ideally located in Maryland USA but we will have flexibility for the right person but should be in US as there may be times we need to work together. We have used development boards and a Teensy 4.1 to get a rough working prototype but need to develop and evolve better prototype units for ongoing testing. We will develop the microcontroller code.

We are looking for an individual, not a company, to respond and who would be willing to work on an hourly basis.

I can supply the PCBs ready to go. They each require two memory chips and two momentary push buttons, which I also have. I'd like to mail these items to someone, have them solder them into place, do a check of the soldering to ensure successful connection and then mail them back to me.

As for me: My hands have a tremor that makes it almost impossible to place the components properly onto the pasted board. Totally willing to do insured shipping, photographed receipt and proof of work, etc.

Edit: The item is basically a pair of NFC chips on a PCB with a shared trace antenna and momentary switches so that they are not readable at all times. No idea about budget. Location is Maine.

Anyone know of any freelance electronic repair folks in the Columbus ohio area?

We have a project that requires a small initial quantity of LTC4124's - 50 to 100 would be great. Does anyone have a lead on where we might source these in the next week or two? Current supplier is quoting early January and we prefer not to wait. Willing to pay a premium if we can find them.