Re: source for smt probe clip

2018-10-28 Thread Jon Elson via cctalk



On 10/27/2018 06:19 PM, Al Kossow via cctalk wrote:

Has anyone seen a source for these clips?

http://bitsavers.org/mysteries/salea_clip.JPG

They come with the Salae logic analyzer, and are like the HP logic analyzer 
clips
in that the wire is detachable, instead of the common style you can buy
where you have to solder on a wire.


HP and Tek both made ultra-micro grabbers for use with logic analyzers.  
I've got a few for the Tek 9100/1240 series analyzers. They have an 
anodized or painted metal tube with two springy wires in it.  The wires 
have bends right at the end, and the button extends the wires, opening 
up the grabber.
You might check eBay under logic analyzer accessories or the like. The 
one you link to looks just a little different, but I think is somewhat 
similar.


Jon


Re: source for smt probe clip

2018-10-28 Thread Alexandre Souza via cctalk
I've got lots and lots in HP probe kits. Just gota brand new HP probe kit
for #40 with some 80 clips and 4 "Hydra" termination cables. The HP P/N is
16715-68702

---8<---Corte aqui---8<---
http://www.tabajara-labs.blogspot.com
http://www.tabalabs.com.br
---8<---Corte aqui---8<---


Em sáb, 27 de out de 2018 às 21:42, Al Kossow via cctalk <
cctalk@classiccmp.org> escreveu:

> Has anyone seen a source for these clips?
>
> http://bitsavers.org/mysteries/salea_clip.JPG
>
> They come with the Salae logic analyzer, and are like the HP logic
> analyzer clips
> in that the wire is detachable, instead of the common style you can buy
> where you have to solder on a wire.
>
>


Re: source for smt probe clip

2018-10-28 Thread Al Kossow via cctalk



On 10/28/18 9:15 AM, Al Kossow via cctalk wrote:
> 
> 
> Software is then pretty simple. Display a .1" grid of points (41x67) and each 
> single-pin probe sweep is a net.

foo, I forgot about the CPU board. the grid needs to be 67x86 :-(




Re: source for smt probe clip

2018-10-28 Thread Al Kossow via cctalk



On 10/27/18 9:13 PM, Al Kossow via cctalk wrote:
> 
> 
> On 10/27/18 7:37 PM, Eric Smith wrote:
>> EZ-Hook XKM
> 
> thanks!
> 
> https://sigrok.org/wiki/Probe_comparison
> 
> is a breakdown. they note that Salae used to ship EZ-Hook but now ship a 
> knock-off (no EZ-Hook name molded on)
> 

This request was related to the displaywriter board prober I'm working on
I've abandoned DIP clips for individual wires

My current thoughts on the probes are a single sense comparator, and an string 
of tlc6c598 DMOS drivers to common
on a strip of 41 POGO pins on a push solenoid moved across the x axis of the 
board by the AxiDraw. Setup of the
scan is easy, the chip has clear, load and shift. On each pass, clear the 
chain, load a 1 on the serial input
then shift to probe the other 40 pins. Step and repeat.
This is simple enough the whole thing should be able to be bit banged by an 
FTDI UM245R

Software is then pretty simple. Display a .1" grid of points (41x67) and each 
single-pin probe sweep is a net.
Light the hits so you don't bother scanning points that are already in a net. 
Start with power and ground.
An added benefit is you'll pick up the DIP, power and ground connections to all 
the passives, as well as
all of the vias in the net and connections to the IBM cans that you can't probe 
from the top.




Re: source for smt probe clip

2018-10-27 Thread Bob Rosenbloom via cctalk

On 10/27/2018 9:50 PM, Chuck Guzis via cctalk wrote:

On 10/27/18 9:13 PM, Al Kossow via cctalk wrote:


On 10/27/18 7:37 PM, Eric Smith wrote:

EZ-Hook XKM

thanks!

https://sigrok.org/wiki/Probe_comparison

is a breakdown. they note that Salae used to ship EZ-Hook but now ship a 
knock-off (no EZ-Hook name molded on)

They don't mention the Pomona 5790, which is pretty much a clone of the
Tek probe.

Still not cheap--about $10 each, lowest price.

--Chuck


If you search for Tektronix or HP grabbers on ebay you can usually find 
them for $1 to $2 each, sometimes less.
I bought 100 of the Tektronix ones a few years ago. They work fine but 
can be easily damaged if your not careful.


Bob

--
Vintage computers and electronics
www.dvq.com
www.tekmuseum.com
www.decmuseum.org



Re: source for smt probe clip

2018-10-27 Thread Chuck Guzis via cctalk
On 10/27/18 9:13 PM, Al Kossow via cctalk wrote:
> 
> 
> On 10/27/18 7:37 PM, Eric Smith wrote:
>> EZ-Hook XKM
> 
> thanks!
> 
> https://sigrok.org/wiki/Probe_comparison
> 
> is a breakdown. they note that Salae used to ship EZ-Hook but now ship a 
> knock-off (no EZ-Hook name molded on)

They don't mention the Pomona 5790, which is pretty much a clone of the
Tek probe.

Still not cheap--about $10 each, lowest price.

--Chuck



Re: source for smt probe clip

2018-10-27 Thread Al Kossow via cctalk



On 10/27/18 7:37 PM, Eric Smith wrote:
> EZ-Hook XKM

thanks!

https://sigrok.org/wiki/Probe_comparison

is a breakdown. they note that Salae used to ship EZ-Hook but now ship a 
knock-off (no EZ-Hook name molded on)



Re: source for smt probe clip

2018-10-27 Thread Eric Smith via cctalk
EZ-Hook XKM. I don't know whether they cloned the HP grabber probe, or
supplied them to HP. They're expensive, so I usually buy the HP grabbers on
eBay.

Watch out. There are some Chinese clone grabbers that look like the XKM or
HP, but aren't nearly as good.


On Sat, Oct 27, 2018, 18:57 Al Kossow via cctalk 
wrote:

> Has anyone seen a source for these clips?
>
> http://bitsavers.org/mysteries/salea_clip.JPG
>


Re: source for smt probe clip

2018-10-27 Thread Chuck Guzis via cctalk
On 10/27/18 4:51 PM, corey cohen wrote:
> 
>> On Oct 27, 2018, at 7:42 PM, Chuck Guzis via cctalk  
>> wrote:
>>
>>> On 10/27/18 4:19 PM, Al Kossow via cctalk wrote:
>>> Has anyone seen a source for these clips?
>>>
>>> http://bitsavers.org/mysteries/salea_clip.JPG
>>>
>>> They come with the Salae logic analyzer, and are like the HP logic analyzer 
>>> clips
>>> in that the wire is detachable, instead of the common style you can buy
>>> where you have to solder on a wire.
>>
>> Pomona 5790?
>>
>>
> 
> I thought I saw some that would work at Halted/HSC in Santa Clara this past 
> week.  They were right across from the counter where you pay.  
> 

There's also these "micrograbber" clips at All Electronics for $2 the each:

https://www.allelectronics.com/item/mtc-9b/micrograbber-test-clip-w/0.64mm-square-pin/1.html

I don't like them as much as the Pomonas--the cheapies use only a single
contact, rather than the "pincer" style of the Pomona.

--Chuck



Re: source for smt probe clip

2018-10-27 Thread Chuck Guzis via cctalk
On 10/27/18 4:19 PM, Al Kossow via cctalk wrote:
> Has anyone seen a source for these clips?
> 
> http://bitsavers.org/mysteries/salea_clip.JPG
> 
> They come with the Salae logic analyzer, and are like the HP logic analyzer 
> clips
> in that the wire is detachable, instead of the common style you can buy
> where you have to solder on a wire.

Pomona 5790?




source for smt probe clip

2018-10-27 Thread Al Kossow via cctalk
Has anyone seen a source for these clips?

http://bitsavers.org/mysteries/salea_clip.JPG

They come with the Salae logic analyzer, and are like the HP logic analyzer 
clips
in that the wire is detachable, instead of the common style you can buy
where you have to solder on a wire.