Hello All; Newbe here. I will take Jeff Brace's advice and detail what I worked on that was pix'ed. (See Jeff's link to the Google drive where the pix are located) I have been working on the museum presentation of the EAI TR20. So far, the restoration has been behind the scenes. Visitors will see the computer in a blue rack, sleeping. We pulled all the amplifier trays from the computer and then put the patch panel back, thereby allowing us to work on the defective components without disturbing the display and not making it any uglier than it already is. The large spaces between the computer are destined for a flatbed plotter (above) and a storage scope (below). With the new fabricated test bed (pix), we now can test and repair the amplifier trays at our convenience (workshop days). The pix that Jeff took of my stuff are as follows: https://drive.google.com/drive/folders/0B9SJLfGXYiG5LS1hMU8yX19fQWM?usp=shar ing IMG_5061.jpg: Could keep the bench a little cleaner. I tend to spread out. IMG_5065 to IMG_5066.jpg: Test Bed finished and fired up. YEAH it's ALIVE! IMG_5067.jpg: Test extender cable is firing up an EAI TR10/20 amplifier tray. Farm fresh picked from the boneyard storage at my warehouse, and it WORKED FIRST SHOT! (Parts and tray components are from my collection.) IMG_5068.jpg: EAI PC-12 Industrial Systems test setup box (glorified DC multimeter) I've jazzed this up with an internal +/- 10v reference supply. This is nice eye candy while doing repairs, and it has the same look and feel of the TR20 front panel. 50 year old technology diagnosing 50 year old technology. Just thought others might want to share in the progress and joy! I will continue diagnosing museum components at next workshop (Feb 11-12) Bill Inderrieden In a message dated 1/16/2017 12:05:17 P.M. Eastern Standard Time, vcf-midatlantic-request@lists.vintagecomputerfederation.org writes: Message: 7 Date: Mon, 16 Jan 2017 01:25:23 -0500 From: Jeffrey Brace <ark72axow@gmail.com> To: vcf-midatlantic <vcf-midatlantic@lists.vintagecomputerfederation.org> Subject: [vcf-midatlantic] Successful workshop January 14&15, 2017 Message-ID: <CAKVfvQxiQA-Z_nzbSnMc-P=TnZJaLWtY84C+HccSzw=OrbgLgQ@mail.gmail.com> Content-Type: text/plain; charset=UTF-8 Just wanted to write a quick e-mail to thank all those who attended the workshop. It was another successful workshop. It was a good idea to have the workshop in the bigger space. It accommodates more people. A lot of things got fixed and there was a lot of sharing of knowledge and expertise. Here are some phones from my iPhone which are raw, unedited and not the best quality (sorry I forgot to bring my Nikon): https://drive.google.com/drive/folders/0B9SJLfGXYiG5LS1hMU8yX19fQWM?usp=shar ing If anyone wants to chime in on what the worked on, their progress and what they need to work on next. -- Jeff Brace - ark72axow@gmail.com End of vcf-midatlantic Digest, Vol 15, Issue 16