Author Topic: Test Equipment Anonymous (TEA) group therapy thread  (Read 1826824 times)

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Offline Inverted18650

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #24400 on: February 04, 2019, 01:43:44 am »
I was able to score a Keithley 4140B pA Meter today. Up to 100VDC with arbitrary wave form generation functionality.
« Last Edit: February 04, 2019, 01:52:01 am by Inverted18650 »
 

Offline 0culus

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #24401 on: February 04, 2019, 01:45:31 am »
You have more playing around money than I do.  :o I support any and all TEA however.  :-+
 

Offline Inverted18650

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #24402 on: February 04, 2019, 01:46:58 am »
You have more playing around money than I do.  :o I support any and all TEA however.  :-+

No I dont, I just have an addiction I have to feed. I sold half my kidney for this lot. I also have bids in on another HP Spec Analyzer HP 8559A and a Tek PS2520OG Programmable PSU. Fingers corssed I get them all and the seller can do a bulk shipping for me!
« Last Edit: February 04, 2019, 01:54:07 am by Inverted18650 »
 

Offline 0culus

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #24403 on: February 04, 2019, 01:56:58 am »
Nice. There's a property auction near me this month that has a lot of HP test equipment so I'm definitely going to that.
 

Offline Mr. Scram

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #24404 on: February 04, 2019, 02:12:02 am »
You have more playing around money than I do.  :o I support any and all TEA however.  :-+
I think many people here are optimising their means like there's no tomorrow, making it seem like people have lots to spend.
 
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Offline Kosmic

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #24405 on: February 04, 2019, 02:24:05 am »
I just found a HP 8566B for 450$ locally. Probably broken but I'm so tempted to pick it up.  :scared:
 

Offline 0culus

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #24406 on: February 04, 2019, 02:26:59 am »
I just found a HP 8566B for 450$ locally. Probably broken but I'm so tempted to pick it up.  :scared:

Do it. Totally worth making any necessary repairs at that price. Or it could serve as a carcass for parts for a better example!
 

Offline Kosmic

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #24407 on: February 04, 2019, 02:43:23 am »
Do it. Totally worth making any necessary repairs at that price. Or it could serve as a carcass for parts for a better example!

I'm reading the manual right now. Will probably call the guy tomorrow.  :palm:

At least I don't need to pay for shipping.
 

Offline 0culus

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #24408 on: February 04, 2019, 02:44:36 am »
I've just about had it with the Vivado Logic Analyzer (breaks at the slightest provocation with unhelpful error messages), so I'm wiring up my research project to the Tek TLA 715. Glad I picked this thing up back in December!

 
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Offline 0culus

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #24409 on: February 04, 2019, 02:46:08 am »
Do it. Totally worth making any necessary repairs at that price. Or it could serve as a carcass for parts for a better example!

I'm reading the manual right now. Will probably call the guy tomorrow.  :palm:

At least I don't need to pay for shipping.

Yeah, that is a plus. I had my 8568B shipped; three boxes since I got the project RF section I've mentioned above. 181 lbs total, and VERY expensive.
 

Online beanflying

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #24410 on: February 04, 2019, 02:50:39 am »
Do it. Totally worth making any necessary repairs at that price. Or it could serve as a carcass for parts for a better example!

I'm reading the manual right now. Will probably call the guy tomorrow.  :palm:

At least I don't need to pay for shipping.

It is worth more than that broken down for spares if it all goes to poo.
Coffee, Food, R/C and electronics nerd in no particular order :)
 
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Offline Kosmic

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #24411 on: February 04, 2019, 02:55:06 am »
It is worth more than that broken down for spares if it all goes to poo.

Good point! Worst case I can just sell it in parts.
 

Offline Inverted18650

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #24412 on: February 04, 2019, 03:08:30 am »
Good point! Worst case I can just sell it in parts.

This is the logic I base ALL of my purchases on. If I cannot use or fix it, I can sell for parts! T....to the E....A....BABY

Offline Kosmic

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #24413 on: February 04, 2019, 03:18:06 am »
I've just about had it with the Vivado Logic Analyzer (breaks at the slightest provocation with unhelpful error messages), so I'm wiring up my research project to the Tek TLA 715. Glad I picked this thing up back in December!

Nice logic analyzer! How many channels do you have ?
 
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Offline 0culus

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #24414 on: February 04, 2019, 03:21:08 am »
I've just about had it with the Vivado Logic Analyzer (breaks at the slightest provocation with unhelpful error messages), so I'm wiring up my research project to the Tek TLA 715. Glad I picked this thing up back in December!

Nice logic analyzer! How many channels do you have ?

2 136 channel 2 GHz modules. Mind you, I don't have nearly enough probes and flying leads for all that as of yet. I'd also like to find the DSO module Tek made for this mainframe system, so I could replace the second LA module and have a big mixed signal scope.
 

Offline mnementh

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #24415 on: February 04, 2019, 03:29:25 am »
   Spending far to many HOURS manually trimming the Ratio Box but it's kind of therapeutic  :)

This is the offending Nominal 600 Ohm card removed fairly easily from the system. It is actually two parallel runs wound in opposite directions to minimize inductance so I shortened both by a 1/2 a turn to bring them from 607  \$\Omega\$ to 594  \$\Omega\$ meaning I had to bump up the trimming bobbin by 3  \$\Omega\$ to get to where it needed to be. Give me a swizzle stick and a trim pot any day.

Trimmed some of the others closer to their nominal values so the divider should be nearly well under 0.02% when I am done if not a bit better if my patience holds out.

Okaaaaaayyyy... You win this week's "OCD on Parade" award...  :-DD

*Gaze narrows suspiciously* Or are you just an e-vampire?!?

*Dumps small mountain of loose axial-lead resistors on the table and leaves the boxes nearby*    >:D

   323 from 1967  :)

I think there are 5pcs. of C size inside, NiCd. KR14, 3Ah
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In Other News...

I have survived another Pokemon night with the boi... relatively cheap this weekend at only $80-ish outlay.  |O

Cardboard crack indeed.  :palm:

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Online beanflying

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #24416 on: February 04, 2019, 03:36:14 am »

Okaaaaaayyyy... You win this week's "OCD on Parade" award...  :-DD

*Gaze narrows suspiciously* Or are you just an e-vampire?!?

*Dumps small mountain of loose axial-lead resistors on the table and leaves the boxes nearby*    >:D


Now apart from that 600  \$\Omega\$ I need to add a little slug of Kanthal too as I ran out of the original wire the box is at or below 0.003%. I beat my earlier estimates of 0.02% by just a bit  >:D
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Offline Inverted18650

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #24417 on: February 04, 2019, 03:49:33 am »
@med, that 7704A is toast brotha, you'll be getting the 7704. SO sorry I didnt see it earlier before I opened my big mouth.

Offline mnementh

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #24418 on: February 04, 2019, 04:14:13 am »

Okaaaaaayyyy... You win this week's "OCD on Parade" award...  :-DD

*Gaze narrows suspiciously* Or are you just an e-vampire?!?

*Dumps small mountain of loose axial-lead resistors on the table and leaves the boxes nearby*    >:D

Now apart from that 600  \$\Omega\$ I need to add a little slug of Kanthal too as I ran out of the original wire the box is at or below 0.003%. I beat my earlier estimates of 0.02% by just a bit  >:D
Well... since you didn't drop everything to count and sort those resistors into their appropriate boxes, I can only assume you either are not any form of wompyre... or that if you are, you're taking your meds. Well, some of them, at least. ;)

   Speaking of compulsive behaviors... "The Sleevening" has begun. Pray for me.  |O

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« Last Edit: February 04, 2019, 04:16:07 am by mnementh »
 
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Offline Inverted18650

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #24419 on: February 04, 2019, 04:23:15 am »
Help please? What is this dude worth?

Offline mnementh

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #24420 on: February 04, 2019, 04:26:34 am »

@med, that 7704A is toast brotha, you'll be getting the 7704. SO sorry I didnt see it earlier before I opened my big mouth.

 :'(

mnem
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Offline mnementh

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #24421 on: February 04, 2019, 04:33:21 am »
Help please? What is this dude worth?

It's a digital SWR/ERP meter. Value depends on functionality and how many of the slugs it has with, as does the operational frequency. I believe it uses the same attenuators as the 43 series, plus a directional coupler slug. I THINK.

Look at the similar items under this listing here:

https://www.ebay.com/i/263249848118?chn=ps

Also look at the SOLD listings for that model. Then adjust using your own judgement. ;)

Good hunting!

[EDIT]

Oh, crappity. I didn't notice at first that it was opened up. That's a... ummmmm... uhhhhhhh...  :-// well, just a massive "damifino" modifier there. 

Sorry.  :-[

[/EDIT]

mnem
*Obsessing-ily*

« Last Edit: February 04, 2019, 04:36:48 am by mnementh »
 

Offline Inverted18650

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #24422 on: February 04, 2019, 04:39:12 am »
Shit I didnt see the missing screws either. Damn YOU MURPHY! Guess I will have to read another fucking manual and check these thing out! MURPH-DAWG, gimme a fucking break will ya.

I think one of the forum guys wants all this gear, but I cant just pawn shit off that I know is bad or tampered...Ill leave it for another day...

Offline salvagedcircuitry

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #24423 on: February 04, 2019, 04:41:46 am »
Looking for Opinions:
Test equipment on-the-bench setup or test equipment on-a-shelf setup?
My table is only 32.5in deep and most of my test equipment is 15-18in in depth, so that doesn't leave a whole lot of space on my work table for DUTs or other larger projects.
I do occasionally film my projects and it might be a pain to have the equipment high up on the shelf and outside the video frame. Hmm the options  ^-^

« Last Edit: February 04, 2019, 04:50:32 am by salvagedcircuitry »
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Offline Inverted18650

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #24424 on: February 04, 2019, 04:47:39 am »
I would do a "step up shelf" off the main table surface so the gear is close (if you need screenshots for your videos) but not taking up "work space". Mount the LCD to the wall and save that space as well. Extend the overhead shelf out about 24in so you can have adequate lighting for all your videos and its not just "onesided". Just off the top of my head.
 
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