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Test Equipment Anonymous (TEA) group therapy thread

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tggzzz:

--- Quote from: Specmaster on June 08, 2018, 08:02:42 am ---Back onto TEA I'm very hopeful of adding a few items of TEA and related items today to my collection. Not going to say what they are at the moment for fear of putting the mockers on it but I'm keeping my fingers crossed 🤞

--- End quote ---

Bad luck with the Philips PM2534 system multimeter; the prices do seem to reflect the provenance.

I'm surprised that the pile of books reached £580. No doubt some were useful, but there were many "firelighters" in there as well!

Specmaster:

--- Quote from: tggzzz on June 08, 2018, 09:55:34 am ---
--- Quote from: Specmaster on June 08, 2018, 08:02:42 am ---Back onto TEA I'm very hopeful of adding a few items of TEA and related items today to my collection. Not going to say what they are at the moment for fear of putting the mockers on it but I'm keeping my fingers crossed 🤞

--- End quote ---

Bad luck with the Philips PM2534 system multimeter; the prices do seem to reflect the provenance.

I'm surprised that the pile of books reached £580. No doubt some were useful, but there were many "firelighters" in there as well!

--- End quote ---
Yep they certainly do reflect the provenance, while I missed out on the PM2534, didn't think it was worth going higher for incase it had the same shitty plastics that my PM2521 has. On the plus side however i did win a PM3390B 200MHz combiscope so at least I tip a toe into the digital scoping world and still have analog in the same machine, need to shift another of my other scopes now to make space for it, just wondering if it should the SS5710, the V-525 or the 1740, decisions decisions.

I bet the manuals for the 3390B were among that heap of books as well which might well be totally useless to the buyer, Just wish these action sites would employ people who actually know what it is that they are looking at and could then collate the other items that should be with the items, in this case and mains lead, manuals and maybe a pair of suitable probes? because it was supplied with manuals and a mains lead at the very least. :-+

mnementh:

--- Quote from: med6753 on June 08, 2018, 09:01:53 am ---I'll contribute some ugly teaser pron.  :palm:

This is an isolation transformer I built from scratch almost 40 years ago. Back in the day when most TV's and all radios were not fully isolated from the AC line and one of these units was mandatory to safely work on them.

Interior view. 2 salvaged transformers in parallel to get at least 120 volts. Yes, it's ugly in there but it's fully grounded and I consider it safe. If I were to build it today I'd used much better construction techniques.

--- End quote ---

Lovely example of Empirical Engineering.  :clap:  The suicide tape around that cluster of wires is the perfect touch. :-+

BTW... if you separate one of the bridges between sides of that outlet, you can mod your circuit to plug in any handy table lamp for use as a "dim bulb" test rig; I did that on one of my old medical isoformer/variacs back in the day.

mnem
Yes, you may touch it.

med6753:

--- Quote from: mnementh on June 08, 2018, 05:21:46 pm ---Lovely example of Empirical Engineering.  :clap:  The suicide tape around that cluster of wires is the perfect touch. :-+

BTW... if you separate one of the bridges between sides of that outlet, you can mod your circuit to plug in any handy table lamp for use as a "dim bulb" test rig; I did that on one of my old medical isoformer/variacs back in the day.

mnem
Yes, you may touch it.

--- End quote ---

Hey, that's UL and CSA approved suicide tape.  :-DD

Yea, been thinking of building up a dim bulb tester after the Tek 465 scared the crap out of me when a tant blew up when I hit power on.  :scared: :scared:

bitseeker:

--- Quote from: med6753 on June 08, 2018, 05:45:24 am ---Back to TEA. When I bought the Tek OS-245(P)/U scope a few months ago the case was a light military gray that was scratched and battered. So I cleaned it up and spray painted it a dark gray which was what I had on hand. But I wasn't happy with it. I decided I wanted Tek blue and started searching for a reasonably priced alternative. I found it. Krylon Gloss Bahama Sea. It's not a perfect match and it can't be used as a touch up for a currently painted cabinet. But for a new application it turned out well. But obviously it does not have the textured finish typical of Tek cabinets.

--- End quote ---

I thought that color sounded familiar and found the post about it from a few years ago. https://www.eevblog.com/forum/testgear/looking-for-goodinexpensive-bench-power-supply/msg544277/#msg544277

A few posts up in that thread are some pics that Tim posted of Rustoleum "Lagoon" that he used as a substitute for Power Designs blue, which is also similar to Tek blue. https://www.eevblog.com/forum/testgear/looking-for-goodinexpensive-bench-power-supply/msg544196/#msg544196

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