Rob, I can't see what the core type is in the coil, but it will be a tool like a screwdriver or hex key that fits snugly in the end of the core. Don't be tempted to use a screwdriver as you can split the core. Some examples here:- http://www.minute-man.com/acatalog/TV_and_Radio_Alignment_Tools.html if anyone can tell me if it's a slot or a hex key then I may have something suitable. Dave -----Original Message----- From: cctalk [mailto:cctalk-bounces at classiccmp.org] On Behalf Of Robert Jarratt Sent: 18 January 2015 10:13 To: General Discussion: On-Topic and Off-Topic Posts Subject: VT100 Monitor Alignment Tool The horizontal width on my VT101 needs adjusting, so I am in need of a monitor alignment tool (PN 29-23190-00). I have tried searching the web to see if I can found out what they look like so that I can improvise something but I have failed to find a picture of the DEC one. Does anyone have a picture of one? Is it just a long thin screwdriver? Is it the same as a generic monitor alignment tool like this one: http://eu.suzohapp.com/product/H92-0196-00/universal-monitor-alignment-tool- kit? Even so the picture on that site makes it hard for me to tell what I need to improvise something. Regards Rob PS The VT101 is partly working, I think the monitor control side is fine, but the terminal controller board seems to have problems, I only get random characters displayed when I power it up and it does not respond to any keys, not even SETUP L