Author Topic: List your test equipment "scores" here!  (Read 497233 times)

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Offline AF6LJ

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Re: List your test equipment "scores" here!
« Reply #925 on: October 03, 2016, 01:06:42 pm »
It deserves its own thread for the teardown. ;)
I thought seriously about that, but since this is a quickie and I had not familiarized myself with the instrument yet I went for the mini teardown...
Sue AF6LJ
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Offline AF6LJ

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Re: List your test equipment "scores" here!
« Reply #926 on: October 03, 2016, 01:12:16 pm »
Heh! The first thing I saw when opening the thread today was your picture with the two regulators, and I immediately thought "that's a 3312A!". They are very nice generators, and the triggered burst with variable phase capability is something even most AWGs have difficulty with. Problems I had with mine were a failed PNP in the burst circuit (can't remember the exact reference designator) and the infamous exploding mains inlet filter - fortunately no harm done. Mine was also missing the power on pilot LED, suggesting it had spent part of its life in an optics lab. Enjoy!
Thanks for the reminder about the exploding line filter...
I'll have to look for a replacement.
Sue AF6LJ
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Offline bitseeker

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Re: List your test equipment "scores" here!
« Reply #927 on: October 03, 2016, 10:32:14 pm »
I thought seriously about that, but since this is a quickie and I had not familiarized myself with the instrument yet I went for the mini teardown...

Thanks for the preview, Sue. Looking forward to the post-familiarization teardown thread.
I TEA.
 
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Offline scopeman

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Re: List your test equipment "scores" here!
« Reply #928 on: October 04, 2016, 02:46:28 am »

Next up is a Panasonic VP-7722A audio analyzer. I'm kinda sorta into audiophoolery and I had no idea Panasonic used to make these things until recently! It's actually quite a respectable performer too, 0.00025% THD+N 2.5V @ 1kHz, 30kHz BW. It weighs a bloody ton at 17kg, might need to start a new thread for a proper teardown if anyone is interested.

I'm super impressed by the unit, because while it won't spit out pretty FFT's which are all the rage these days, I think it will be very handy for quick and dirty production line testing since you don't need a computer to operate it. It will happily dance with 'entry level' Audio-Precision analysers, I think you need an AP 2722 ($10k+ used) to better it in terms of THD+N anyway.


Any chance you have a manual or a link for the manual for the VP-7722A?

Sam
W3OHM
 

Offline xwarp

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Re: List your test equipment "scores" here!
« Reply #929 on: October 05, 2016, 09:01:53 am »
Well it took awhile, but I finally got an original HP 8698B RF plug in manual for a reasonable price.

Those clowns on that auction site are pretty proud of their manuals.

In any case, the 8690B sweep oscillator manual doesn't disclose the various disabled functions when certain plug-ins are used, i.e., the "standby/RF" switching in the oscillator doesn't apply with the 8698B plug in. Good to know because I was worried that there was something that needed to be fixed.

 

Offline Ysjoelfir

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Re: List your test equipment "scores" here!
« Reply #930 on: October 07, 2016, 06:47:41 pm »
Last week I got a nice Hameg HM1507-3 Combiscope from a friend of mine. Just seems to be a bit dirty from the inside, at least the pots , switches and rotary encoders are a bit quirky. From the outside... Well, it's like new I would say. Since it was sitting in an shelf for years i think it didnt see many waveforms in his life till now. Time to change that!
I guess I will try to fix it in the next time.  :-+
Greetings, Kai \ Ysjoelfir
 

Offline AutomationGuy

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Re: List your test equipment "scores" here!
« Reply #931 on: October 08, 2016, 09:11:16 am »
Got brand new LeCroy ZS1500 active voltage probes from ebay for 1/4 of the new price. The calibration certificate is from 2013.
Now I need a bandwidth upgrade for my WS3024.
 

Offline tzok

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Re: List your test equipment "scores" here!
« Reply #932 on: October 09, 2016, 04:14:54 pm »
GW Instek GFG-8015G : 2MHz Function Generator (analog) - with a missing handle/stand and with replaced output connectors to Jacks instead of BNCs : ~$20 + $2 for BNC connectors.
Velleman HPS-40 : 40MSa/s 1CH Handheld Scope - non operational on internal batteries (corroded contacts) : ~$80 (contacts cleaned, 5 new AA Ni-MH batteries inserted and it works ok).
« Last Edit: October 09, 2016, 04:18:38 pm by tzok »
 

Offline OiD

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Re: List your test equipment "scores" here!
« Reply #933 on: October 10, 2016, 12:37:37 am »
Got an Array 3710A Electronic load for 80€ (Love it) from a place I worked at.
Weller WSD81 For free from a friends workplace.
Found a two small 300VA variac for free the day after I finally bought my 3KVA variac.  :palm: Now the big one only gets used for the big projects
Telewave 44A Wattmeter for free from another friends workplace.
A very nice stereo microscope with 12cm of workspace for 5€ from a closing optometrist.

Provably a couple more things I cant remember right now. :-+
 

Offline TerraHertz

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Re: List your test equipment "scores" here!
« Reply #934 on: October 17, 2016, 01:43:35 am »
Not test equipment, but I'm pretty stoked with this. Yesterday I went to Flemington Markets and MSY in Auburn, for assorted small things. Near the markets I found a street-tossed office machine - a really big one on a pedestal.  It's a Canon imageRUNNER 2220i
Brochure: http://csscanon.com/uploads/IR2220series.pdf

Fortunately I had my son with me, since it took two of us to lift it into the car. Ha, the manual insists it's a 4-person lift. Weigh:   214lb. (97.4kg)
I'd thought it would just be something fun to tear down. It had no damage but appeared to have been left in a warehouse exposed to diesel truck exhaust for some time - lots of black grime. So presumably not working.

But no! After a quick clean it powered up, with a self-diagnostic fatal error code. Which, on downloading the service manual, turned out to be 'toner waste container full'. Emptied that (not accessible to users) and it boots up (from internal hard disk) and works. Operation logs in memory say it was last used in 2013.

So now I have a high volume A3-sheet laser network printer, scanner and photocopier. The user interface is a relatively large color touch screen. Nice.  Also the pedestal cupboard contained a never-used CD of the related graphics utilities.

This goes nicely with the perfectly working 'enterprise quality' A4 color laser printer I also found as a street toss recently. http://everist.org/NobLog/20151112_planning_vacuum.htm#printer
That one got me out of a high-cost parking fine soon after, since the judge was so relieved to see a nicely printed 'why it wasn't my fault' presentation after all the shitty hand written notes he'd been reading for hours, he dropped the fine.
I wonder what this printer will be useful for?
Collecting old scopes, logic analyzers, and unfinished projects. http://everist.org
 
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Offline Cubdriver

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Re: List your test equipment "scores" here!
« Reply #935 on: October 17, 2016, 02:38:37 am »
Very nice 'find'!  Congrats!  Good thing you had help to lift it.

-Pat
If it jams, force it.  If it breaks, you needed a new one anyway...
 

Offline Berni

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Re: List your test equipment "scores" here!
« Reply #936 on: October 17, 2016, 05:30:01 am »
Nice freebie that photocopier. I wouldn't be surprised if it was thrown out due to that toner waste full error code.
 

Offline VK5RC

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Re: List your test equipment "scores" here!
« Reply #937 on: October 17, 2016, 06:51:12 am »
Good (but heavy) haul.  :-+
Whoah! Watch where that landed we might need it later.
 

Online tautech

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Re: List your test equipment "scores" here!
« Reply #938 on: October 17, 2016, 07:00:28 am »
I wonder what this printer will be useful for?
Do I sense a printed manual service ?
 :popcorn:

Now for a cheap source of paper......
Avid Rabid Hobbyist
 

Offline MosherIV

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Re: List your test equipment "scores" here!
« Reply #939 on: October 17, 2016, 07:22:55 am »
I totally forgot about this thread. I just got this to check and calibrate my DMMs

General Resistance DAS56A dial a  source.



Does both volts and amps
 

Offline TerraHertz

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Re: List your test equipment "scores" here!
« Reply #940 on: October 17, 2016, 09:47:20 am »
I wonder what this printer will be useful for?
Do I sense a printed manual service ?
 :popcorn:

Now for a cheap source of paper......

Ha ha, no. I should post this in the 'products you hate' thread, but thermal toner books of any kind, I loathe them. Because the toner becomes softened and tacky with any diffusion through the paper of the plasticiser volatiles from PVC. Such as ring binder covers.
Result: With almost all photocopied manuals, after a while the first few pages at both ends start sticking to each other, and transferring the toner. Horrible.

Real ink on acid-free paper, it's the only way to mass produce long lasting documents cheaply.
Collecting old scopes, logic analyzers, and unfinished projects. http://everist.org
 

Offline Berni

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Re: List your test equipment "scores" here!
« Reply #941 on: October 17, 2016, 09:47:54 am »
I totally forgot about this thread. I just got this to check and calibrate my DMMs

General Resistance DAS56A dial a  source.


Does both volts and amps

Hah love that it actually says "Dial a source" on the front :D

Any date markings on this oldtimer?
 

Offline MosherIV

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Re: List your test equipment "scores" here!
« Reply #942 on: October 17, 2016, 12:55:29 pm »
Quote
Any date markings on this oldtimer? 

No, affraid not. If I find some time, I will do a tear down.
 

Offline bitseeker

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Re: List your test equipment "scores" here!
« Reply #943 on: October 17, 2016, 09:39:02 pm »
I should post this in the 'products you hate' thread, but thermal toner books of any kind, I loathe them. Because the toner becomes softened and tacky with any diffusion through the paper of the plasticiser volatiles from PVC. Such as ring binder covers.

+1

I've had many such copies ruined either inside binders or having unfortunately been placed against the outside of them.
I TEA.
 

Offline karoru

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Re: List your test equipment "scores" here!
« Reply #944 on: October 18, 2016, 03:03:10 am »
Fortunately I had my son with me, since it took two of us to lift it into the car. Ha, the manual insists it's a 4-person lift. Weigh:   214lb. (97.4kg)

Joy of these office photocopy thingies. At my former workplace I had few outdated units gathering dust for years in strange places - at least three e-waste companies said they were "very busy" after hearing over the phone what do we want them to pick up. Also, fact that only two male workers were me and 6x years old electrician certainly didn't help with getting rid of them. I'm sure these copiers still silently wait for their demise at yet another unused corridor till this day:)
 

Offline guido

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Re: List your test equipment "scores" here!
« Reply #945 on: October 18, 2016, 09:30:03 pm »
Tek 7612D digitizer with two 7A16Ps for free.

Playing with GPIB at the moment, the 1979 implementation is quite allergic to a modern prologix adapater. An old win 98 PC with NI adapter and software is able to talk to it. Strange thing with EZGPIB, it only works after using the NI "talk to instrument" feature first.

I also found old software online that is supposed to be able to take measurements. It's running on HP BASIC, so now i'm looking for a way to run this on Windows/dos.

Another challenge is to read the MCM6832 ROMs in the 7A16P's. My acient programmers are not old enough to handle them. The 7612D uses 2716, i did those (copied to KO4BB).

The mainframe seems ok. No errors when querying ERR? on GPIB. I'm also missing a real XYZ monitor
 

Offline riyadh144

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Re: List your test equipment "scores" here!
« Reply #946 on: October 18, 2016, 10:04:27 pm »
The best steel I have ever got and will ever get.
Two fluke 87 (original) just dusted them and working perfectly
One BK precision 60v/3A power supply
A few cheap clamp meters
Two voltage testers (I think good quality)
Two pipe bender things(He gave them to me I didn't need them)
All of this for $100.

Hands down I think I got the jackpot
 

Offline Jester

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Re: List your test equipment "scores" here!
« Reply #947 on: October 19, 2016, 09:58:26 pm »
Tektronix TM503 Chassis for $20 in like new condition (with no modules), guy told me that it must be bad because "when I plug it in nothing lights up"
 
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Offline AF6LJ

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Re: List your test equipment "scores" here!
« Reply #948 on: October 20, 2016, 09:49:00 pm »
Tektronix TM503 Chassis for $20 in like new condition (with no modules), guy told me that it must be bad because "when I plug it in nothing lights up"

Must Be ;)
Sue AF6LJ
Test Equipment Addict, And Proud Of It.
 

Offline janoc

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Re: List your test equipment "scores" here!
« Reply #949 on: October 20, 2016, 10:54:45 pm »
Just got an HP 34401A perfectly working and with valid cal - for 230€ delivered.
 


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