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Test Equipment Anonymous (TEA) group therapy thread

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bd139:
That might actually explain the gap in kit from 1990-2005

tggzzz:

--- Quote from: med6753 on June 02, 2018, 11:20:39 am ---Some vintage pron. Tek 465 Vertical Board. It has to come out to diagnose and fix issues with the Channel 2 attenuator deck switch. According to bd139 it's not too bad to pull. In comparison to what? A root canal? Not sure what I'm facing but I'm going in. Not sure when or if I'll return. And of course this delicate surgery demands a good assortment of high quality tools. So full (careful) speed ahead.

--- End quote ---

... and it has a DM44 in the way as well. Oh joy.

Your most important tools are:

* patience
* paper, pencil, and a digital camera - to record what each stage looks like, and where connections/screws go, just before you destroy take it apart
* small ziplock bags, to keep the screws etc from each stage of disassembly
* the right manual

bd139:
+ coffee

When dismantling stuff I label all wires with tags made from cut off paper address label. These stay on until it’s working again.

tggzzz:

--- Quote from: bd139 on June 02, 2018, 11:35:42 am ---That might actually explain the gap in kit from 1990-2005

--- End quote ---

Don't take the times too literally; date/performance boundaries are always fuzzy and moving.

But one example: a high-end HP DSO (HP54100 introduced in 1986) was a two man lift, had 7-bit 40MS/s DACs, but a 1GHz bandwidth.

med6753:

--- Quote from: tggzzz on June 02, 2018, 11:38:52 am ---
--- Quote from: med6753 on June 02, 2018, 11:20:39 am ---Some vintage pron. Tek 465 Vertical Board. It has to come out to diagnose and fix issues with the Channel 2 attenuator deck switch. According to bd139 it's not too bad to pull. In comparison to what? A root canal? Not sure what I'm facing but I'm going in. Not sure when or if I'll return. And of course this delicate surgery demands a good assortment of high quality tools. So full (careful) speed ahead.

--- End quote ---

... and it has a DM44 in the way as well. Oh joy.

Your most important tools are:

* patience
* paper, pencil, and a digital camera - to record what each stage looks like, and where connections/screws go, just before you destroy take it apart
* small ziplock bags, to keep the screws etc from each stage of disassembly
* the right manual
--- End quote ---

Taking a break. Slow and steady progress. Yep, the DM44 was in the way and had to come out. Lots of pictures. So far I've left all the coax towards the back in place. I want to get the board itself totally free first.

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