• Full Screen
  • Wide Screen
  • Increase font size
  • Default font size
  • Decrease font size

Quick news.............

26/10/14 - I've been playing with CPLD's for the first time with a view to using one in an up & coming project. The Xilinx XC9572XL is the hardware I've chosen, along with Xilinx ISE Design Suite 14.7. So far so good my "Hello World" is working.

Latest Articles.............

Project - CSI Bench Power Supply CC Setting Upgrade

Project: As recently sold in my online shop I have decide to open the design to the masses. Eagle PCB and BOM files available for download.
Date: 18/01/15

Video Blog - 22" LCD TV Repair

Video Blog: The 22" LCD TV from our bedroom has stopped responding to the remote control so I decided to see if a quick repair could be carried out.
Date: 11/01/15

Video Blog - Philip Harris Mains AC Current Meter Conversion

Video Blog: My Philip Harris Mains AC Current Meter has 2 modes but only 1 LCD, so I decided to modify the panel and incorporate 2 LCDs.
Date: 06/12/14

Video Blog - Keithley 2015 THD Multimeter Display Replacement

Video Blog: The VFD (vacuum fluorescent display) of my primary bench multimeter has aged and has gone a bit too dimm for my liking, so I set about a repair.
Date: 29/10/14

Video Blog - EDC 501-J Programable D.C Voltage Source mods

Video Blog: Whilst researching the idea behind designing and building a handheld Voltage Source I actually ended up buying an EDC 501-J Programable D.C Voltage Source. However, it was the remote programmable version without the front panel controls, so I built my own!
Date: 19/10/14

Project - Designing a Multi I/O Interface for a Sinclair ZX Spectrum

Project: After digging my 30yr old ZX Spectrum out from the loft, I decided to see if I could design & build a Multi I/O interface for it, consisting of both analogue and digital I/O.
Date: 10/10/14

PayPal Donation

Feel free to make a PayPal donation no matter how small to keep this site and my video blogs going.

IanJohnston.com is powered by Joomla/IIS and hosted on a dedicated server.