Date   
Re: (OT) Counterfeit JFETS (was Re: Improving accuracy of TM500 Counter/Timer )

Miroslav Pokorni
 

What makes you think that Toshiba grinds rejects? Perhaps they ship them to China for assembly house's use. I suspect that all those cheap components from China are pilfered parts.

Miroslav Pokorni


On 11/2/2012 7:33 AM, Mike wrote:
 

Tom-

Yeah, in retrospect I can see that too, but I didn't even get suspicious until I held them alongside genuine parts from another vendor. I mean, who goes to the trouble of counterfeiting a 99 cent transistor? (OK, so now I know...).

Re: what these really might be, a theory; Toshiba sorts the 2sk170 into three Idss ranges. All the bogus nFETS I got were above or below the extreme ends of the range for any category. Maybe someone got their hands in the "test reject" bin at the factory, before they went to the grinder for destruction?

Doesn't explain the p-channels, athough. None met the "BL" grade as printed, but some did actually meet a valid higher or lower Idss range. Could have failed some other test, of course.

Not going to have a cow over 20 bucks, but I will indeed pursue this guy as a matter of principle.

mike

--- In TekScopes@..., "Tom Miller" wrote:
>
> Wow, if you just look at the sanded front surface and poor quality printing, you will see an excellent example of counterfeited parts.
>
> I wonder what the base part was?
>
> ----- Original Message -----
> From: David DiGiacomo
> To: TekScopes@...
> Sent: Thursday, November 01, 2012 11:01 PM
> Subject: Re: [TekScopes] Re: Improving the accuracy of TM500 Counter/Timer plugins
>
>
>
> I hope you will file an eBay claim... and leave negative feedback.
>
> On Thu, Nov 1, 2012 at 1:47 PM, Mike wrote:
> > David- I think maybe you are lucky. My experience is closer to Dick's.
> >
> > For example, I have here a batch of clearly counterfeit jFETs from a vendor in Shenzen. He is now demanding that I return them, incurring postage of ~ the purchase price (and coincidentally, delay exceeding the ePay dispute window), before he'll process a refund.
> >
> > If you're curious look at (and avoid) item 251126037762.
> >
> > To lowest approximation, dishonesty has no preferred location.
> >
> > Mike
> >
> >
> > --- In TekScopes@..., David DiGiacomo wrote:
> >>
> >> On Thu, Nov 1, 2012 at 11:36 AM, Richard Solomon wrote:
> >> > From what I have read, these seem to be a hit or miss proposition. If it doesn't
> >> > work, you are stuck returning it. And our postage costs are much higher than the
> >> > subsidized postage costs in China.
> >> >
> >> > I think a lot of vendors over there rely on that to ship just any old junk that will
> >> > never get returned.
> >>
> >> Not on eBay... Chinese eBay sellers are not big on testing or checking
> >> things before they ship them, but I haven't ever had a problem getting
> >> a refund on a bad or misdescribed item, without having to mail it
> >> back. I'd say they are better than US vendors in that regard.
> >>
> >
> >
> >
> >
> > ------------------------------------
> >
> > Yahoo! Groups Links
> >
> >
> >
>

Re: OT: eBay removes

Chris Trask - N7ZWY/WDX3HLB
 


I would very much like to find a search engine that does not parse out
phrases. If I put in a phrase as a search criterion, I want the
phrase, the whole phrase, and nothing but the phrase.
try putting the quote marks " at the beginning and end of the
phrase this will work on "some" searches
No, it does not work at all on any Google searches.

Chris

Re: OT: eBay removes

Jim <n6otq@...>
 

I put in my $0.02 -- I am "acresofradiojunk."

73
Jim N6OTQ

PS -- My opinion is of little relevance, since I buy almost nothing from ebay nowadays, and use it primarily to determine FMV of surplus.  I've had far too many bad experiences on there -- including with PayPal, which I now use ONLY when selling to folks overseas, and purchase with it ONLY if there happens to be some necessary hobby item that simply cannot be sourced anywhere else besides fleabay.


From: Mike
To: TekScopes@...
Sent: Friday, November 2, 2012 12:42 PM
Subject: [TekScopes] Re: OT: eBay removes

Folks- we hear you, now please tell eBay. All together now...

http://forums.ebay.com/db1/topic/Search/Ebay-Discontinuing-Wildcard/5100116578?start=24&ts=1351878062352#msg5201569191

mike

--- In TekScopes@..., Chris Trask wrote:
>
> >
> >I'm getting more and more T'd off with eBay.  Here's their latest wheeze.
> >
>
>      <>
>
>      I'm not the least bit surprised about this, and I can't imagine how I would become more disappointed in the "improvements" instigated by the eBay cyber-toddlers.  In the past two years I've watched as eBay goes from being a very useful medium for finding parts and equipment to being a nightmare of confusion as major changes take place from one week to the next, sometimes one day to the next.
>
> Chris
>




------------------------------------

Yahoo! Groups Links

<*> To visit your group on the web, go to:
    http://groups.yahoo.com/group/TekScopes/

<*> Your email settings:
    Individual Email | Traditional

<*> To change settings online go to:
    http://groups.yahoo.com/group/TekScopes/join
    (Yahoo! ID required)

<*> To change settings via email:
    TekScopes-digest@...
    TekScopes-fullfeatured@...

<*> To unsubscribe from this group, send an email to:
    TekScopes-unsubscribe@...

<*> Your use of Yahoo! Groups is subject to:
    http://docs.yahoo.com/info/terms/



2465B cal 06..some doubt about!

iglesia_cristiana_arpas_eternas
 

Hi to all!!.
I have some doubt...I`m right about entirely cal 06 is done at 100Khz?..
The Tek manual is not very clear about what signal to apply at "dd ,gg" .
Tek define 100Khz at "e"..and no longer mention about .
I have a PG506 and TG501 which trigger a PG502..not a pulser diode sorry!, Can I do a good cal with this gear?...some advice about?

Comparing the pulse from PG502 between my 2465 300MhzBW and my 2465B..the front edge pulse is very flat on 2465, but with spike or overshoot in 2465B..I don`t like that..is a normal behavior?

The NVRAM is new and retain front panel setting and the new cal value.
But....I still have at power one... "test 04 fail 02".. ,even after doing cal 01,02,03 and 09....with apparently success.

All those calibration seems to be right ,since I check vert & horiz range and precision.....whhhhhy "test 04 fail 02" refuse to vanish ????...What I`m doing wrong?
Regards Gabriel.

Re: OT: eBay removes

Mike
 

--- In TekScopes@..., Chris Trask <christrask@...> wrote:


I'm getting more and more T'd off with eBay. Here's their latest wheeze.
<<SNIP>>

I'm not the least bit surprised about this, and I can't imagine how I would become more disappointed in the "improvements" instigated by the eBay cyber-toddlers. In the past two years I've watched as eBay goes from being a very useful medium for finding parts and equipment to being a nightmare of confusion as major changes take place from one week to the next, sometimes one day to the next.

Chris

Re: OT: eBay removes

 

Mine did not either. I had to delete the search and rewrite it


Jerry Massengale



-----Original Message-----
From: Richard Solomon
To: TekScopes
Sent: Fri, Nov 2, 2012 11:40 am
Subject: Re: [TekScopes] Re: OT: eBay removes

 
And, just to add fuel .... the Edit Search function does not work.

73, Dick, W1KSZ

On Fri, Nov 2, 2012 at 9:38 AM, John Griessen <john@...> wrote:
 
On 11/02/2012 11:31 AM, DiPaolo Richard wrote:
> *'s searches, bog down servers. They were probably monitoring performance on their systems and some pimple faced kid spotted that
> the * searches, were taking up too much computing power. Damn kids.

The way de-evolution is so often called an improvement these days suggests
most corps think the customer is stupid, and should be used for traction.

Gripe gripe gripe!

Re: OT: eBay removes

Bert Haskins
 

On 11/02/2012 12:02 PM, jerry massengale wrote:
 

M y sear ch term Tektronix SC50* is now Tektronix (sc501,sc502,sc50 3,sc504,sc 501,sc 502,sc 503,sc 504)    thanks alot. damn kids!



Jerry Massengale



-----Original Message-----
From: Artekmedia
To: TekScopes
Sent: Fri, Nov 2, 2012 10:52 am
Subject: Re: [TekScopes] Re: OT: eBay removes

 
try putting the quote marks    "   at the beginning and end of the phrase this will work on "some" searches

On 11/2/2012 10:49 AM, Chris Trask wrote:
 
>
> Search engines in general getting worse (for people who actually know
> how to spell what they're looking for). The worst characteristic of
> eBay is that it corrects your spelling if your search doesn't find
> anything. It's particularly annoying when searching for part numbers
> since it will change them to something similar, and it's easy to miss
> it if you don't look carefully. I've almost bought the wrong part
> several times because of that.
>
> Also, eBay and Google like to treat every work as a wildcard, and also
> show synonyms. They seem to think that more hits are better, even if
> they aren't relevant.
>

I would very much like to find a search engine that does not parse out phrases. If I put in a phrase as a search criterion, I want the phrase, the whole phrase, and nothing but the phrase.

Chris
I often, at used to, search using the term tek* (7a*),(7b*),(7c*),(7d*) -topps -teken -manual*.
Can you imagine just how much junk that is going to bring back?

My ebay purchase count is going lower with each passing month.
This new, stupid trick will add to that trend.
Maybe we should relax the rule about advertising on this list.
Yeh, I know but if adds had "AD" at the beginning they would just be swept away.


-- 
Dave Henderson
Manuals@...
www.Artekmanuals.com
PO Box 175
Welch,MN 55089
651-269-4265

Re: OT: eBay removes

 

I guess I will just have to write some scripts to scrape my search
requests. Since I will be able to get results every hour or few
minutes instead of every day, that should improve their server
utilization plenty and they will not have to bother storing my saved
searches or sending email.

On Fri, 2 Nov 2012 09:31:07 -0700 (PDT), DiPaolo Richard
<kathnrich@...> wrote:

*'s searches, bog down servers. They were probably monitoring performance on their systems and some pimple faced kid spotted that the * searches, were taking up too much computing power. Damn kids.

   All The Best, Rich D.

Re: OT: eBay removes

Richard Solomon
 

I do use Firefox and it did work before. Perhaps it's the Microsoft
influence !!

73, Dick, W1KSZ


On Fri, Nov 2, 2012 at 9:44 AM, David DiGiacomo <daviddigiacomo@...> wrote:
 

Are you using Firefox? Try a different browser for that.

On Fri, Nov 2, 2012 at 10:40 AM, Richard Solomon <dickw1ksz@...> wrote:
>
>
>
> And, just to add fuel .... the Edit Search function does not work.
>
> 73, Dick, W1KSZ
>
>
> On Fri, Nov 2, 2012 at 9:38 AM, John Griessen <john@...> wrote:
>>
>>
>>
>> On 11/02/2012 11:31 AM, DiPaolo Richard wrote:
>> > *'s searches, bog down servers. They were probably monitoring performance on their systems and some pimple faced kid spotted that
>> > the * searches, were taking up too much computing power. Damn kids.
>>
>> The way de-evolution is so often called an improvement these days suggests
>> most corps think the customer is stupid, and should be used for traction.
>>
>> Gripe gripe gripe!
>
>
>
>
>


Re: OT: eBay removes

 

On Fri, 02 Nov 2012 11:38:10 -0500, John Griessen
<@jgriessen> wrote:

On 11/02/2012 11:31 AM, DiPaolo Richard wrote:
*'s searches, bog down servers. They were probably monitoring performance on their systems and some pimple faced kid spotted that
the * searches, were taking up too much computing power. Damn kids.
The way de-evolution is so often called an improvement these days suggests
most corps think the customer is stupid, and should be used for traction.

Gripe gripe gripe!
I am still pissed off that they changed their HTML to produce only a
narrow tablet formatted display.

Re: OT: eBay removes

David DiGiacomo
 

Are you using Firefox? Try a different browser for that.

On Fri, Nov 2, 2012 at 10:40 AM, Richard Solomon <dickw1ksz@...> wrote:



And, just to add fuel .... the Edit Search function does not work.

73, Dick, W1KSZ


On Fri, Nov 2, 2012 at 9:38 AM, John Griessen <@jgriessen> wrote:



On 11/02/2012 11:31 AM, DiPaolo Richard wrote:
*'s searches, bog down servers. They were probably monitoring performance on their systems and some pimple faced kid spotted that
the * searches, were taking up too much computing power. Damn kids.
The way de-evolution is so often called an improvement these days suggests
most corps think the customer is stupid, and should be used for traction.

Gripe gripe gripe!



Re: OT: eBay removes

 

A lot of my saved searches already looked like that.

I notice that their "automatic" matching does NOT return the same
results as the * wildcard searches.

On Fri, 2 Nov 2012 12:02:03 -0400 (EDT), jerry massengale
<@jmassen418> wrote:

My search term Tektronix SC50* is now Tektronix (sc501,sc502,sc503,sc504,sc 501,sc 502,sc 503,sc 504) thanks alot. damn kids!

Jerry Massengale

Re: OT: eBay removes

Paul Amaranth
 

If they didn't have all the dang patents tied up this would be a good
time for a competitor to move in.

Paul

On Fri, Nov 02, 2012 at 09:40:20AM -0700, Richard Solomon wrote:
And, just to add fuel .... the Edit Search function does not work.

73, Dick, W1KSZ

On Fri, Nov 2, 2012 at 9:38 AM, John Griessen <@jgriessen> wrote:

**


On 11/02/2012 11:31 AM, DiPaolo Richard wrote:
*'s searches, bog down servers. They were probably monitoring
performance on their systems and some pimple faced kid spotted that
the * searches, were taking up too much computing power. Damn kids.
The way de-evolution is so often called an improvement these days suggests
most corps think the customer is stupid, and should be used for traction.

Gripe gripe gripe!

--
Paul Amaranth, GCIH | Rochester MI, USA
Aurora Group, Inc. | Security, Systems & Software
paul@... | Unix & Windows

Re: OT: eBay removes

Richard Solomon
 

And, just to add fuel .... the Edit Search function does not work.

73, Dick, W1KSZ


On Fri, Nov 2, 2012 at 9:38 AM, John Griessen <john@...> wrote:
 

On 11/02/2012 11:31 AM, DiPaolo Richard wrote:
> *'s searches, bog down servers. They were probably monitoring performance on their systems and some pimple faced kid spotted that
> the * searches, were taking up too much computing power. Damn kids.

The way de-evolution is so often called an improvement these days suggests
most corps think the customer is stupid, and should be used for traction.

Gripe gripe gripe!


Re: OT: eBay removes

John Griessen
 

On 11/02/2012 11:31 AM, DiPaolo Richard wrote:
*'s searches, bog down servers. They were probably monitoring performance on their systems and some pimple faced kid spotted that
the * searches, were taking up too much computing power. Damn kids.
The way de-evolution is so often called an improvement these days suggests
most corps think the customer is stupid, and should be used for traction.

Gripe gripe gripe!

Re: OT: eBay removes

DiPaolo Richard <kathnrich@...>
 

*'s searches, bog down servers. They were probably monitoring performance on their systems and some pimple faced kid spotted that the * searches, were taking up too much computing power. Damn kids.
 

   All The Best, Rich D.


From: jerry massengale
To: TekScopes@...
Sent: Friday, November 2, 2012 12:02 PM
Subject: Re: [TekScopes] Re: OT: eBay removes

 
My search term Tektronix SC50* is now Tektronix (sc501,sc502,sc503,sc504,sc 501,sc 502,sc 503,sc 504)    thanks alot. damn kids!


Jerry Massengale



-----Original Message-----
From: Artekmedia
To: TekScopes
Sent: Fri, Nov 2, 2012 10:52 am
Subject: Re: [TekScopes] Re: OT: eBay removes

 
try putting the quote marks    "   at the beginning and end of the phrase this will work on "some" searches

On 11/2/2012 10:49 AM, Chris Trask wrote:
 
>
> Search engines in general getting worse (for people who actually know
> how to spell what they're looking for). The worst characteristic of
> eBay is that it corrects your spelling if your search doesn't find
> anything. It's particularly annoying when searching for part numbers
> since it will change them to something similar, and it's easy to miss
> it if you don't look carefully. I've almost bought the wrong part
> several times because of that.
>
> Also, eBay and Google like to treat every work as a wildcard, and also
> show synonyms. They seem to think that more hits are better, even if
> they aren't relevant.
>

I would very much like to find a search engine that does not parse out phrases. If I put in a phrase as a search criterion, I want the phrase, the whole phrase, and nothing but the phrase.

Chris

--
Dave Henderson
Manuals@...
www.Artekmanuals.com
PO Box 175
Welch,MN 55089
651-269-4265


Re: OT: eBay removes

 

My search term Tektronix SC50* is now Tektronix (sc501,sc502,sc503,sc504,sc 501,sc 502,sc 503,sc 504)    thanks alot. damn kids!


Jerry Massengale



-----Original Message-----
From: Artekmedia
To: TekScopes
Sent: Fri, Nov 2, 2012 10:52 am
Subject: Re: [TekScopes] Re: OT: eBay removes

 
try putting the quote marks    "   at the beginning and end of the phrase this will work on "some" searches

On 11/2/2012 10:49 AM, Chris Trask wrote:
 
>
> Search engines in general getting worse (for people who actually know
> how to spell what they're looking for). The worst characteristic of
> eBay is that it corrects your spelling if your search doesn't find
> anything. It's particularly annoying when searching for part numbers
> since it will change them to something similar, and it's easy to miss
> it if you don't look carefully. I've almost bought the wrong part
> several times because of that.
>
> Also, eBay and Google like to treat every work as a wildcard, and also
> show synonyms. They seem to think that more hits are better, even if
> they aren't relevant.
>

I would very much like to find a search engine that does not parse out phrases. If I put in a phrase as a search criterion, I want the phrase, the whole phrase, and nothing but the phrase.

Chris

--
Dave Henderson
Manuals@...
www.Artekmanuals.com
PO Box 175
Welch,MN 55089
651-269-4265

Re: OT: eBay removes

Artekmedia <manuals@...>
 

try putting the quote marks    "   at the beginning and end of the phrase this will work on "some" searches

On 11/2/2012 10:49 AM, Chris Trask wrote:
 

>
> Search engines in general getting worse (for people who actually know
> how to spell what they're looking for). The worst characteristic of
> eBay is that it corrects your spelling if your search doesn't find
> anything. It's particularly annoying when searching for part numbers
> since it will change them to something similar, and it's easy to miss
> it if you don't look carefully. I've almost bought the wrong part
> several times because of that.
>
> Also, eBay and Google like to treat every work as a wildcard, and also
> show synonyms. They seem to think that more hits are better, even if
> they aren't relevant.
>

I would very much like to find a search engine that does not parse out phrases. If I put in a phrase as a search criterion, I want the phrase, the whole phrase, and nothing but the phrase.

Chris


-- 
Dave Henderson
Manuals@...
www.Artekmanuals.com
PO Box 175
Welch,MN 55089
651-269-4265

Re: OT: eBay removes "wild-card" searches

Tom Phillips
 


One of the examples they give to search without the wildcard is "...Replace "Floral silk scar*" with "Floral silk scarf"..."
This lame example is proof that the "programmers" at ebay don't even understand the full usefulness of the wildcard character.
If they don't reverse their decision then it will be difficult to do a complete search for variations of thinks like obsolete part numbers.

I can just see their automatic substitutions now. You include "Tek" in your search term and they come back with "Did you mean Tekakwitha?"


Sheesh!
Tom







Re: OT: eBay removes

Chris Trask - N7ZWY/WDX3HLB
 


Search engines in general getting worse (for people who actually know
how to spell what they're looking for). The worst characteristic of
eBay is that it corrects your spelling if your search doesn't find
anything. It's particularly annoying when searching for part numbers
since it will change them to something similar, and it's easy to miss
it if you don't look carefully. I've almost bought the wrong part
several times because of that.

Also, eBay and Google like to treat every work as a wildcard, and also
show synonyms. They seem to think that more hits are better, even if
they aren't relevant.
I would very much like to find a search engine that does not parse out phrases. If I put in a phrase as a search criterion, I want the phrase, the whole phrase, and nothing but the phrase.

Chris