Author Topic: Used Equipment 101: Taking the Gamble on fleaBay  (Read 6421 times)

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Online Specmaster

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Re: Used Equipment 101: Taking the Gamble on fleaBay
« Reply #50 on: October 07, 2018, 09:12:03 am »

mnem
Murphy's a bitch, and she has puppies.
Really, I've seen Murphy come in but not any puppies :-//
Who let Murphy in?

Brymen-Fluke-Solartron-HP-Thurlby-Heathkit-Thander-Tek-Extech-Black Star-GW-Advance-Avo
 

Offline bd139

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Re: Used Equipment 101: Taking the Gamble on fleaBay
« Reply #51 on: October 07, 2018, 09:14:14 am »
Tantalum capacitors in tek equipment are murphy’s puppies.
 
The following users thanked this post: mnementh, Specmaster

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Re: Used Equipment 101: Taking the Gamble on fleaBay
« Reply #52 on: October 07, 2018, 09:19:30 am »
Yeh, that figures  :-DD
Who let Murphy in?

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Online Specmaster

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Re: Used Equipment 101: Taking the Gamble on fleaBay
« Reply #53 on: October 07, 2018, 09:51:50 am »
Yep, if all else fails, it's good for lots of parts. It's even got feet!

Damn, you're right... what if it's even got the tilt bail on it? Then I'd be obligated to try and resurrect it, no matter WHAT'S WRONG with it...  |O

mnem
Murphy's a bitch, and she has puppies.
Well if it comes to it....my 3478A has neither feet or tilting bail, looking for a donor..... >:D Its the only bench meter I use that is missing those items  :palm:
« Last Edit: October 07, 2018, 09:53:49 am by Specmaster »
Who let Murphy in?

Brymen-Fluke-Solartron-HP-Thurlby-Heathkit-Thander-Tek-Extech-Black Star-GW-Advance-Avo
 

Online med6753

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Re: Used Equipment 101: Taking the Gamble on fleaBay
« Reply #54 on: October 07, 2018, 11:46:38 am »
Tantalum capacitors in tek equipment are murphy’s puppies.

Truth.  :o
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Online mnementh

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Re: Used Equipment 101: Taking the Gamble on fleaBay
« Reply #55 on: October 07, 2018, 02:46:32 pm »


Whenever you guys say "Tants!!!" in thread that way... with loathing visibly dripping from every keystroke... I imagine gear infested with Domo-Kun. It makes me smile.  >:D

mnem
 :popcorn:
« Last Edit: October 07, 2018, 03:35:17 pm by mnementh »
 

Offline GreyWoolfe

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Re: Used Equipment 101: Taking the Gamble on fleaBay
« Reply #56 on: October 07, 2018, 06:41:00 pm »
Well if it comes to it....my 3478A has neither feet or tilting bail, looking for a donor..... >:D Its the only bench meter I use that is missing those items  :palm:

Mine had neither also.  Luckily, I have a bunch of feet that I took off of some decommissioned company equipment before it went to be scrapped.  Not as sexy as the original feet but functional.  I used the existing holes and they fall in place to fit properly on the bench shelves.  No tilting bail necessary.  The shelf it will go on will put it at eye height.
"Heaven has been described as the place that once you get there all the dogs you ever loved run up to greet you."
 

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Re: Used Equipment 101: Taking the Gamble on fleaBay
« Reply #57 on: October 07, 2018, 06:49:22 pm »
Well if it comes to it....my 3478A has neither feet or tilting bail, looking for a donor..... >:D Its the only bench meter I use that is missing those items  :palm:
Yeah, mine is on a shelf but just below eyeline so if it remains there, will not used either, but its always nice to have all the fittings so that I have the option if I need to change things around in the future.

Mine had neither also.  Luckily, I have a bunch of feet that I took off of some decommissioned company equipment before it went to be scrapped.  Not as sexy as the original feet but functional.  I used the existing holes and they fall in place to fit properly on the bench shelves.  No tilting bail necessary.  The shelf it will go on will put it at eye height.
Who let Murphy in?

Brymen-Fluke-Solartron-HP-Thurlby-Heathkit-Thander-Tek-Extech-Black Star-GW-Advance-Avo
 

Online med6753

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Re: Used Equipment 101: Taking the Gamble on fleaBay
« Reply #58 on: October 07, 2018, 08:22:01 pm »


Whenever you guys say "Tants!!!" in thread that way... with loathing visibly dripping from every keystroke... I imagine gear infested with Domo-Kun. It makes me smile.  >:D

mnem
 :popcorn:

Those things and tants deserve this fate..
An old gray beard with an attitude.
 

Offline bitseeker

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Re: Used Equipment 101: Taking the Gamble on fleaBay
« Reply #59 on: October 07, 2018, 09:20:01 pm »
Regarding feet for the 3478A, there is a more readily available alternative solution, if you have the same revision as mnementh.

Specifically, on the front panel, the bezel is plastic and has four cleats(?) that hold the front panel in (e.g., one is between the up and down arrow buttons and another below the calibration switch):



On the rear panel, a plastic bezel covers the rear edge of the slide-on lid:



Both of these bezels are predecessors to the ones used on the 34401A and, hence, you can fit the front and rear bumpers from the 34401A, 34410A, 34411A, 33120A, 34461A, 53131A, etc. on the 3478A. Doing so eliminates the need for the original plastic feet as the bumpers have integrated feet. Of course, without the ability to mount the corresponding handle, there's no provision for a tilting bail.



Although the front alumin(i)um bezel of the older version of 3478A is similar, and could use the front rubber bumper, it doesn't have a rear bezel to grip the rear bumper. But that shouldn't be a big problem unless you move the meter often.
I TEA.
 

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Re: Used Equipment 101: Taking the Gamble on fleaBay
« Reply #60 on: October 07, 2018, 09:56:03 pm »
Thanks, thats a thought except that mine must be older then because mine as the aluminum bezel, strange that because I always thought it was the plastic one that was the early meter.

speaking of 3478A, have you had the courage yet to rob a fuse from something else and power it up on a variac seeing as it has a linear supply? 
Who let Murphy in?

Brymen-Fluke-Solartron-HP-Thurlby-Heathkit-Thander-Tek-Extech-Black Star-GW-Advance-Avo
 

Offline bitseeker

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Re: Used Equipment 101: Taking the Gamble on fleaBay
« Reply #61 on: October 07, 2018, 10:12:26 pm »
Thanks, thats a thought except that mine must be older then because mine as the aluminum bezel, strange that because I always thought it was the plastic one that was the early meter.

Yeah, the plastic one is cost-reduced with the plastic bezels, the one-piece slide-on cover, and opto-couplers on the motherboard. The aluminum version has multiple metal panels, heavy metal frame, and toroidal transformers instead of opto-couplers on the motherboard.

Quote
speaking of 3478A, have you had the courage yet to rob a fuse from something else and power it up on a variac seeing as it has a linear supply?

I ordered a batch of fuses. I don't have any of the right rating. Good idea with the variac. Ease those RIFAs back to service — just temporarily, of course.

Oops, I guess this discussion is veering too far into repair talk. Back to fleaBay strategies!
« Last Edit: October 07, 2018, 10:19:01 pm by bitseeker »
I TEA.
 

Offline bd139

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Re: Used Equipment 101: Taking the Gamble on fleaBay
« Reply #62 on: October 07, 2018, 10:55:10 pm »
I'd rather remove the RIFAs than risk having to smell that again.

Keeping it gambling - always price RIFAs into your repair budget!
 

Offline Chris56000

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Re: Used Equipment 101: Taking the Gamble on fleaBay
« Reply #63 on: October 08, 2018, 05:12:57 pm »
Hi!

I put up a Keysight 2100 (the re–badged Array M3500 one) which I'd been disappointed with because the handle and rear bumper was missing (it had been used in one of those stupid lab racks where they remove the handles, etc), so as I needed one I could carry I put it up for sale.

Posting it with a verbal description on its own produced no interest for three days, but as soon as I revised the listing with pictures of it switched on, front and back pictures showing what was missing, and also the serial number I got plenty of interest afterwards, with bids ending at £200 when the auction closed, which I was quite happy with!

Chris Williams
« Last Edit: October 08, 2018, 05:29:30 pm by Chris56000 »
It's an enigma that's what it is!! This thing's not fixed because it doesn't want to be fixed!!
 

Offline GregDunn

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Re: Used Equipment 101: Taking the Gamble on fleaBay
« Reply #64 on: October 08, 2018, 08:03:04 pm »
As a buyer, I really appreciate photos of the unit switched on as well as accurate descriptions.  However, I dodged a bullet recently when buying a Fluke 8800A; the photos were accurate and the unit indeed powered on - however, the PSU had several bad caps and the ohms board a couple of very poor solder joints (obviously a failed repair attempt).   The result was a meter which was badly out of spec on DCV and Ω until I fixed it. 

I don't really blame the seller for not realizing the unit didn't work properly because it was an estate sale through an antiques dealer who listed it in good faith.  Yes, they should have contacted a tech to look it over before selling it as "working", but since the fix was very cheap and easy I decided not to press the issue.  Also, it was a late model with the updated ohms board which doesn't require batteries, and those aren't common.  I probably would have bought it even knowing the exact symptoms, but it would have been good to know beforehand.
 

Offline bitseeker

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Re: Used Equipment 101: Taking the Gamble on fleaBay
« Reply #65 on: October 09, 2018, 01:58:29 am »
Yeah, hence the importance of looking at other things the eBayer sells to gauge the potential oversights, innocent or otherwise, in the listing details. Buying from ignorant sellers can be advantageous, but it does introduce more risk and potential surprises.
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Offline bd139

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Re: Used Equipment 101: Taking the Gamble on fleaBay
« Reply #66 on: October 09, 2018, 07:11:35 am »
Reading the manual and looking at the front panel tend to help. As I've mentioned elsewhere a broken scope isn't necessarily a broken scope if it the seller has got it stuck in X-Y mode and there's a dot on the screen.
 

Online Specmaster

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Re: Used Equipment 101: Taking the Gamble on fleaBay
« Reply #67 on: October 09, 2018, 07:16:20 am »
Reading the manual and looking at the front panel tend to help. As I've mentioned elsewhere a broken scope isn't necessarily a broken scope if it the seller has got it stuck in X-Y mode and there's a dot on the screen.
That happens a lot as well.
Who let Murphy in?

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Offline encoupejas

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Re: Used Equipment 101: Taking the Gamble on fleaBay
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« Last Edit: Yesterday at 07:48:59 am by encoupejas »
 


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