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Test Equipment Anonymous (TEA) group therapy thread

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djos:
It's pretty basic, but hey I needed a logic probe, so I bought a kit - should look like this when assembled:  :-/O



I could have bought a cheap Chinese pre-built one, but I couldn't wait 4 weeks for it.

EDIT: the design is from Silicon Chip magazine.

http://archive.siliconchip.com.au/cms/A_102204/article.html

Cerebus:

--- Quote from: bd139 on June 12, 2018, 10:13:45 pm ---It found a couple of monster HP supplies this evening but they are too damn big and heavy to justify purchasing. I got the tape measure out and checked  :(

--- End quote ---

I keep having the same problem. "Ooo! Shiny HP power supply!", "Oh, monster power supply.  :(". It takes long enough to persuade myself that I do need to drag all 32lb of that HP6002 off of the shelf for the thing I'm working on.  Poor bugger spends more time as a car battery charger than it does as a lab supply - that's what you get for being CC/CV and having a 10A output.

Talking of heavy, you'll be pleased to note that I took one of your anecdotes as advice. I had an in on a monster variac for a bargain price (15A ~3600VA) and declined once I recalled your words on similar and realised that it might spend too long in the cupboard and too little time on the bench on the "too much fuss to get the heavy bugger out" basis.

Specmaster:

--- Quote from: Cerebus on June 13, 2018, 12:15:59 am ---
--- Quote from: bd139 on June 12, 2018, 10:13:45 pm ---It found a couple of monster HP supplies this evening but they are too damn big and heavy to justify purchasing. I got the tape measure out and checked  :(

--- End quote ---

I keep having the same problem. "Ooo! Shiny HP power supply!", "Oh, monster power supply.  :(". It takes long enough to persuade myself that I do need to drag all 32lb of that HP6002 off of the shelf for the thing I'm working on.  Poor bugger spends more time as a car battery charger than it does as a lab supply - that's what you get for being CC/CV and having a 10A output.

Talking of heavy, you'll be pleased to note that I took one of your anecdotes as advice. I had an in on a monster variac for a bargain price (15A ~3600VA) and declined once I recalled your words on similar and realised that it might spend too long in the cupboard and too little time on the bench on the "too much fuss to get the heavy bugger out" basis.

--- End quote ---
Yep, I quite agree, I find that a 500VA suits my needs, I have a 500VA isolation transformer as well, never needed anything larger so far.

bitseeker:

--- Quote from: Specmaster on June 12, 2018, 07:25:51 pm ---Hers are just a few of my better photos from the Fly Navy airshow at Old Warden recently If anyone wants a high res version for a wallpaper etc, PM me with your personal email address and I'll gladly send one to you.

--- End quote ---

Very cool, Spec! Always a nice diversion from the regular programming.

tggzzz:

--- Quote from: Cerebus on June 13, 2018, 12:15:59 am ---
--- Quote from: bd139 on June 12, 2018, 10:13:45 pm ---It found a couple of monster HP supplies this evening but they are too damn big and heavy to justify purchasing. I got the tape measure out and checked  :(

--- End quote ---

I keep having the same problem. "Ooo! Shiny HP power supply!", "Oh, monster power supply.  :(". It takes long enough to persuade myself that I do need to drag all 32lb of that HP6002 off of the shelf for the thing I'm working on.  Poor bugger spends more time as a car battery charger than it does as a lab supply - that's what you get for being CC/CV and having a 10A output.

Talking of heavy, you'll be pleased to note that I took one of your anecdotes as advice. I had an in on a monster variac for a bargain price (15A ~3600VA) and declined once I recalled your words on similar and realised that it might spend too long in the cupboard and too little time on the bench on the "too much fuss to get the heavy bugger out" basis.

--- End quote ---

One problem with high current power supplies is that you ought to have the necessary equipment for the extraction of gaseous copper. Sooner or later you'll need it.

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