xDevs.com Development tracker

During october/november services on this site might not work reliably.
Please report if you see any issues or strange things.

Brief summary of xDevs.com in year 2015.
Hope to get twice as much progress and achievements in this 2016!

Illya "TiN" Tsemenko

To be merged on-site webinterface as well.

New article about Hewlett-Packard HP3245A obsolete universal generator. Teardown, repairs and tweak guide.
https://xdevs.com/fix/hp3245a/

Instrument firmwares, calibration test results verification and video covering operation are shown.
Contents include next items:

• Intro
• Disclaimer
• Initial inspection and basic disassembly
• Manuals references
• Repair workflow
  • Boards condition check
• Diagnostics
• Firmware
• Calibration
• Performance verification
• Tweaks
  • Main reference upgrade
  • Additional output amplifier for 0.1x/0.01x gain
• Restoration summary

Published article from TEKTRON covering repair, testing and performance improvement for Hewlett-Packard 3456A system DMM.
Also provided interesting questions and notes and methodology for calibration, precision stable voltage reference design and A/D testing.

Article is available here, in our Repairs section

Work in progress!

Details here

Added firmware files

Project temporary suspended due to possible move to another apartment.

ETA to resume - end-April/begin-May

If you want to create/maintain or submit any project, both hardware or software, feel free to contact me in any comfortable way. Space, personal email server, ftp upload, image/file hosting, wiki - this is only beginning in services we provide for our developers.

Registration and project managment is FREE.

Welcome!