Author Topic: List your test equipment "scores" here!  (Read 476648 times)

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Online TERRA Operative

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Re: List your test equipment "scores" here!
« Reply #2400 on: April 06, 2019, 11:22:56 pm »
Oooh, can you guys take a peek and if you do hae the HV option, can you take a few photos of both sides of the PCB and wiring? :)

And, yep, I'm already feeling a bit wary of that HV output hitting my scope.
I do have a Tek TDS210 and the inputs on that are good for 300v, but I can't say the same for my frequency counters, or the circuits I end up hooking it up to. :D
Any circuit design must contain at least one part which is obsolete, two parts which are unobtainable, and three parts which are still under development.

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Offline 0culus

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Re: List your test equipment "scores" here!
« Reply #2401 on: April 07, 2019, 04:24:10 am »
I can't do it this weekend, but I can probably get you some pics next week.
 

Offline Jay_Diddy_B

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Re: List your test equipment "scores" here!
« Reply #2402 on: April 07, 2019, 12:05:41 pm »
Hi group,

I know that the HV option for the HP3325A can be cloned. Here are a couple of pictures of my clone:






I did this several computers ago. I had a look for the files and I couldn't find them.

(We should probably make a separate thread?)

Regards,

Jay_Diddy_B
 
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Online TERRA Operative

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Re: List your test equipment "scores" here!
« Reply #2403 on: April 07, 2019, 12:25:27 pm »
Yeah, let's make a thread.
I am starting to cross reference all the silicon now.

I'm just picking up my new car this afternoon, but I'll share what I have so far later today.
Any circuit design must contain at least one part which is obsolete, two parts which are unobtainable, and three parts which are still under development.

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Offline Jay_Diddy_B

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Re: List your test equipment "scores" here!
« Reply #2404 on: April 07, 2019, 12:26:20 pm »
Hi,

I remember how I did the cloning. I entered the schematic into a CAD system. I then used the picture of the board in the service manual to place all the components in the same place as HP did. I then used the net list to figure out where to put the tracks.

I can remember having to use different phono (RCA) jacks than the original.


I have attached the section from the manual. I have an original paper manual. I think I  worked from the paper version.

I have started a new thread:

https://www.eevblog.com/forum/testgear/cloning-the-hp3325a-option-002-hv-output/new/#new


Regards,
Jay_Diddy_B
« Last Edit: April 07, 2019, 12:38:27 pm by Jay_Diddy_B »
 

Online BravoV

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Rohde & Schwarz SML03 Signal Generator
« Reply #2405 on: April 08, 2019, 05:13:50 am »
So sick & bored of my DIY 555 based signal generator for decades, got a better alternative now.  :-DD

An used R&S SML03 Sig-gen.  :P
« Last Edit: April 08, 2019, 05:38:32 am by BravoV »
 

Online bitseeker

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Re: Rohde & Schwarz SML03 Signal Generator
« Reply #2406 on: April 08, 2019, 08:52:32 am »
So sick & bored of my DIY 555 based signal generator for decades, got a better alternative now.  :-DD

An used R&S SML03 Sig-gen.  :P

Nice score! Let me know when you get sick & bored with it. :-DD
I TEA.
 

Offline Berni

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Re: Rohde & Schwarz SML03 Signal Generator
« Reply #2407 on: April 08, 2019, 03:43:50 pm »
So sick & bored of my DIY 555 based signal generator for decades, got a better alternative now.  :-DD

An used R&S SML03 Sig-gen.  :P

As a 555 timer replacement i still like my old HP 8082A
http://www.testequipmentdepot.com/usedequipment/hewlettpackard/signalgenerators/8082a.htm

Essentially a digital output signal generator with an adjustable voltage level and rise/fall time. It has a impressive minimum rise time of under 1ns letting it generate perfectly clean and sharp 100MHz square waves.

Its kinda big for what it does, but its very nice for when you just want to quickly generate a clock or toggle something digital. The UI consisting of nothing but real clunking multiposition switches is also a joy to use.
 

Offline Famine

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Re: List your test equipment "scores" here!
« Reply #2408 on: April 08, 2019, 04:20:08 pm »
I've had a spot of luck with fluke gear lately, wish it would catch on with other gear.

Fluke 725 Lot $380 USD
725
5kpsi module
Pump
Pelican case

Fluke 87v Lot $375 USD
3x 87v
3x tpak
3x semi complete sure grip accessory

Fluke 789 $100 USD
Kind of got taken on this one.

Listed as good condition but the Internal battery tab fingers broken so they soldered wires from the tabs to the pads.

selector knob and top case had junk between them that wore out both pieces of plastic.

Fluke 423A 0-3KV supply $45 USD

Fluke 1507 $60 USD

Fluke 179 $90 USD



Sent from my SM-G955W using Tapatalk

 

Online BravoV

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Re: Rohde & Schwarz SML03 Signal Generator
« Reply #2409 on: April 08, 2019, 06:35:29 pm »
So sick & bored of my DIY 555 based signal generator for decades, got a better alternative now.  :-DD

An used R&S SML03 Sig-gen.  :P

As a 555 timer replacement i still like my old HP 8082A
http://www.testequipmentdepot.com/usedequipment/hewlettpackard/signalgenerators/8082a.htm

Essentially a digital output signal generator with an adjustable voltage level and rise/fall time. It has a impressive minimum rise time of under 1ns letting it generate perfectly clean and sharp 100MHz square waves.

Its kinda big for what it does, but its very nice for when you just want to quickly generate a clock or toggle something digital. The UI consisting of nothing but real clunking multiposition switches is also a joy to use.

Damn, you did it again, don't tease me please.  :palm:

Too bad mine is plain vanilla version with no option installed, actually this R&S SML sig-gen series has an option that can do pulse generation & modulation, spec attached below.
« Last Edit: April 08, 2019, 06:54:58 pm by BravoV »
 

Offline Berni

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Re: List your test equipment "scores" here!
« Reply #2410 on: April 08, 2019, 07:29:59 pm »
There is always more test gear to be had on the used market  >:D
 

Offline beanflying

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Re: List your test equipment "scores" here!
« Reply #2411 on: April 17, 2019, 08:30:13 pm »
Added some slightly more serious Linear oomph to the bench with this 22kg beasty. Aussie made and tough as old boots. 35V @ 5A x 2. My couple of beefy SMPS can go back to just R/C use. $100 AU pesos plus 1/2 a truckload of $ for freight or maybe a 5 hour round trip to pick it up.

Coffee, Food, R/C and electronics nerd in no particular order :)
 

Offline rastro

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Re: List your test equipment "scores" here!
« Reply #2412 on: April 17, 2019, 10:51:25 pm »
I like the dual suitcase handles.
 
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Offline beanflying

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Re: List your test equipment "scores" here!
« Reply #2413 on: April 18, 2019, 01:15:40 am »
The handles  were always strange on them you finish up with 22kg sitting under the belt line :o These and the matching era Scopes by the same local manufacturer were standard Secondary School gear 30-40+ years ago.

Added a slightly random (for most) bit of test gear to my collection as well at $20 AU pesos with postage. Impressive specs over my cheap one I have had for years for outdoor R/C flying use. Far more useful and accurate for low speed airflow in industrial work.

Coffee, Food, R/C and electronics nerd in no particular order :)
 
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Offline markav2

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Re: List your test equipment "scores" here!
« Reply #2414 on: April 18, 2019, 11:46:35 pm »
A few days ago I hit the mother load of equipment at auction. Paid a total of $205 for all listen equipment.

Fluke 45 Dual Display Multimeter $37
Hewlett Packard 66332A Dynamic Measurement DC Source $14
Agilent Technologies E3632A DC Power Supply $110
Kikusui PAB 18-1A Regulated DC Power Supply $7
HP 6825A Bipolar Power Supply/Amplifier Calibration:7/16/2013  $18.50
HP E3615A DC Power Supply, 0-20V, 0-3A; Calibration: 2/18/2000 $18.50

None of it was listed as nonworking so hopefully, when I'm able to get it in a home shop and do some testing it will all be good.

 

Offline Neomys Sapiens

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Re: List your test equipment "scores" here!
« Reply #2415 on: April 19, 2019, 02:23:00 am »
A few days ago I hit the mother load of equipment at auction. Paid a total of $205 for all listen equipment.

Fluke 45 Dual Display Multimeter $37
Hewlett Packard 66332A Dynamic Measurement DC Source $14
Agilent Technologies E3632A DC Power Supply $110
Kikusui PAB 18-1A Regulated DC Power Supply $7
HP 6825A Bipolar Power Supply/Amplifier Calibration:7/16/2013  $18.50
HP E3615A DC Power Supply, 0-20V, 0-3A; Calibration: 2/18/2000 $18.50

None of it was listed as nonworking so hopefully, when I'm able to get it in a home shop and do some testing it will all be good.
Especially the second and the second-last leave me speechless.
 

Online bitseeker

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Re: List your test equipment "scores" here!
« Reply #2416 on: April 19, 2019, 07:42:50 am »
 :o
I TEA.
 

Offline innkeeper

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Re: List your test equipment "scores" here!
« Reply #2417 on: April 19, 2019, 10:12:01 am »
Been so long since I posted my acquisitions, I'll have to trickle them out as I use them.

The current one I am cleaning up ... Tektronix 576 Curve Tracer :)

if anyone has tricks for removing that blob of aged epoxy off the aluminum, let me know



Hobbyist and a retired engineer and possibly a test equipment addict, though, searching for the equipment to test for that.
 
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Offline shakalnokturn

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Re: List your test equipment "scores" here!
« Reply #2418 on: April 19, 2019, 10:43:05 am »
Philips PM 3214
Hameg HM 203-6
Beckman industrial 9016

The lot for 50€, they all need repair and cleaning.

The PM 3214 has had a quick power-on so far, not looking too bad overall, but after a 5 min warm the traces loose intensity, the H.V. sags (trace length diminishes) this gets worse by turning the graticule illumination up.
I was hoping for a bad C203, that seems OK in circuit, the pottings looks atrocious, so now I'm starting to dread a leaky transformer or H.V. multiplier. Will have to make some measurements.
 

Offline GregDunn

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Re: List your test equipment "scores" here!
« Reply #2419 on: April 19, 2019, 03:39:57 pm »
Been so long since I posted my acquisitions, I'll have to trickle them out as I use them.

The current one I am cleaning up ... Tektronix 576 Curve Tracer :)

if anyone has tricks for removing that blob of aged epoxy off the aluminum, let me know

Many kinds of epoxy will literally crumble to pieces when subjected to soldering iron temperature.  I had a circuit board on which someone had dropped an ugly blob of epoxy - which incidentally was covering up a couple of components.  I used a normal sized soldering gun with a thin spade tip and gently scraped it away.  At a high enough temperature the epoxy just fell apart; by being gentle, I was able to remove nearly all of it without damaging the board or components.  Yours being aluminum, it ought to be possible to get all the blob off pretty readily; I had to be careful with the glass-fiber board itself.
 

Offline 0culus

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Re: List your test equipment "scores" here!
« Reply #2420 on: April 20, 2019, 06:24:33 am »
Tek 7904A with a 7A26, 7A19, 7B15 (hey might as well start getting stuff for a 7104  >:D ) and a 7B92A. I've got a few more plugins coming.
 

Offline Neomys Sapiens

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Re: List your test equipment "scores" here!
« Reply #2421 on: April 20, 2019, 08:33:01 am »
Tek 7904A with a 7A26, 7A19, 7B15 (hey might as well start getting stuff for a 7104  >:D ) and a 7B92A. I've got a few more plugins coming.
Do you intend to buy this strange comparator plugin? Please do, and then tell me for what it is useful really!
In this case a Tek document just managed to cause a capital WTF moment in me.
 

Offline 0culus

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Re: List your test equipment "scores" here!
« Reply #2422 on: April 20, 2019, 09:02:00 am »
Tek 7904A with a 7A26, 7A19, 7B15 (hey might as well start getting stuff for a 7104  >:D ) and a 7B92A. I've got a few more plugins coming.
Do you intend to buy this strange comparator plugin? Please do, and then tell me for what it is useful really!
In this case a Tek document just managed to cause a capital WTF moment in me.

Which one are you talking about? Among the other plugins I'm going to be getting is another 7A26 dual trace amplifier. The 7A19 is a 600 MHz 50 ohm amplifier designed for reaching the rated bandwidth of the 7904A (500 MHz).
 

Offline Neomys Sapiens

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Re: List your test equipment "scores" here!
« Reply #2423 on: April 20, 2019, 12:34:26 pm »
Tek 7904A with a 7A26, 7A19, 7B15 (hey might as well start getting stuff for a 7104  >:D ) and a 7B92A. I've got a few more plugins coming.
Do you intend to buy this strange comparator plugin? Please do, and then tell me for what it is useful really!
In this case a Tek document just managed to cause a capital WTF moment in me.

Which one are you talking about? Among the other plugins I'm going to be getting is another 7A26 dual trace amplifier. The 7A19 is a 600 MHz 50 ohm amplifier designed for reaching the rated bandwidth of the 7904A (500 MHz).
I was referring to the 7A13 differential comparator plugin.
 

Offline 0culus

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Re: List your test equipment "scores" here!
« Reply #2424 on: April 20, 2019, 12:42:02 pm »
Ah. I think there is one in the box of plugins the fellow is sending me. No experience with it yet.
 


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