J
John Larkin
Guest
https://www.dropbox.com/s/8oefk1v8avr6l7a/Probe_Slips.jpg?raw=1
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B
Bill Sloman
Guest
On Friday, September 4, 2020 at 10:24:52 AM UTC+10, John Larkin wrote:
> https://www.dropbox.com/s/8oefk1v8avr6l7a/Probe_Slips.jpg?raw=1
Not really worth posting.
--
Bill Sloman, Sydney
> https://www.dropbox.com/s/8oefk1v8avr6l7a/Probe_Slips.jpg?raw=1
Not really worth posting.
--
Bill Sloman, Sydney
T
Tabby
Guest
On Friday, 4 September 2020 01:24:52 UTC+1, John Larkin wrote:
> https://www.dropbox.com/s/8oefk1v8avr6l7a/Probe_Slips.jpg?raw=1
Yep. Bring back valves I say! Pins spaced too far apart for that to even be a problem.
> https://www.dropbox.com/s/8oefk1v8avr6l7a/Probe_Slips.jpg?raw=1
Yep. Bring back valves I say! Pins spaced too far apart for that to even be a problem.
J
John Miles, KE5FX
Guest
On Thursday, September 3, 2020 at 5:24:52 PM UTC-7, John Larkin wrote:
> https://www.dropbox.com/s/8oefk1v8avr6l7a/Probe_Slips.jpg?raw=1
I just got a good deal on a DSO6034A, and the seller sweetened the deal
further by throwing in a pair of HP 1161As. I had never used those
before, and now I will never use any other passive probes ever again.
They seem to be an awfully well-kept secret.
-- john, KE5FX
> https://www.dropbox.com/s/8oefk1v8avr6l7a/Probe_Slips.jpg?raw=1
I just got a good deal on a DSO6034A, and the seller sweetened the deal
further by throwing in a pair of HP 1161As. I had never used those
before, and now I will never use any other passive probes ever again.
They seem to be an awfully well-kept secret.
-- john, KE5FX
S
server
Guest
On Thu, 3 Sep 2020 19:24:05 -0700 (PDT), \"John Miles, KE5FX\"
<jmiles@gmail.com> wrote:
Why is that one so good?
--
John Larkin Highland Technology, Inc
Science teaches us to doubt.
Claude Bernard
<jmiles@gmail.com> wrote:
On Thursday, September 3, 2020 at 5:24:52 PM UTC-7, John Larkin wrote:
https://www.dropbox.com/s/8oefk1v8avr6l7a/Probe_Slips.jpg?raw=1
I just got a good deal on a DSO6034A, and the seller sweetened the deal
further by throwing in a pair of HP 1161As. I had never used those
before, and now I will never use any other passive probes ever again.
They seem to be an awfully well-kept secret.
-- john, KE5FX
Why is that one so good?
--
John Larkin Highland Technology, Inc
Science teaches us to doubt.
Claude Bernard
J
John Larkin
Guest
On Thu, 3 Sep 2020 18:49:31 -0700 (PDT), Tabby <tabbypurr@gmail.com>
wrote:
We\'ve had some slips that wrecked some valuable first-article
engineering-test products, and some occasional blow-ups in the test
department, so I made that poster to hang a few places around here.
I use very sharp probes, and probe under my Mantis, and I\'ve learned
to be very careful. DVM probes start out pretty crude, and then wear
out to get round on the tip.
These help:
https://www.dropbox.com/s/nf7kfj2zu9ku3il/Probes.jpg?raw=1
It\'s almost impossible to probe the really small stuff, like a US8.
wrote:
On Friday, 4 September 2020 01:24:52 UTC+1, John Larkin wrote:
https://www.dropbox.com/s/8oefk1v8avr6l7a/Probe_Slips.jpg?raw=1
Yep. Bring back valves I say! Pins spaced too far apart for that to even be a problem.
We\'ve had some slips that wrecked some valuable first-article
engineering-test products, and some occasional blow-ups in the test
department, so I made that poster to hang a few places around here.
I use very sharp probes, and probe under my Mantis, and I\'ve learned
to be very careful. DVM probes start out pretty crude, and then wear
out to get round on the tip.
These help:
https://www.dropbox.com/s/nf7kfj2zu9ku3il/Probes.jpg?raw=1
It\'s almost impossible to probe the really small stuff, like a US8.
J
John Miles, KE5FX
Guest
On Friday, September 4, 2020 at 7:52:59 AM UTC-7,
> Why is that one so good?
They are much smaller than most OEM probes, they feel very precise in
use, and the cable is thinner and more flexible than any others I\'ve seen.
All of which makes slippage less likely. Their tips are also sharper, but
that\'s only one consideration. I just bought a couple more on eBay to go
with this pair.
The difference between the clunky 10073C/10073D probes that ship with
the scope and the 1161A is the difference between a K-car and a Cayman.
-- john, KE5FX
> Why is that one so good?
They are much smaller than most OEM probes, they feel very precise in
use, and the cable is thinner and more flexible than any others I\'ve seen.
All of which makes slippage less likely. Their tips are also sharper, but
that\'s only one consideration. I just bought a couple more on eBay to go
with this pair.
The difference between the clunky 10073C/10073D probes that ship with
the scope and the 1161A is the difference between a K-car and a Cayman.
-- john, KE5FX
S
Steve Wilson
Guest
John Larkin <jlarkin@highland_atwork_technology.com> wrote:
I solder sewing needles to the probe tip. Use a pair of locking pliers as
a heat sink to prevent melting the probe.
As well as piercing insulation, the needles allow probing very tiny
objects such as ic pins.
Got to watch out for getting stuck on the sharp needle.
On Thu, 3 Sep 2020 18:49:31 -0700 (PDT), Tabby <tabbypurr@gmail.com
wrote:
On Friday, 4 September 2020 01:24:52 UTC+1, John Larkin wrote:
https://www.dropbox.com/s/8oefk1v8avr6l7a/Probe_Slips.jpg?raw=1
Yep. Bring back valves I say! Pins spaced too far apart for that to
even be a problem.
We\'ve had some slips that wrecked some valuable first-article
engineering-test products, and some occasional blow-ups in the test
department, so I made that poster to hang a few places around here.
I use very sharp probes, and probe under my Mantis, and I\'ve learned
to be very careful. DVM probes start out pretty crude, and then wear
out to get round on the tip.
These help:
https://www.dropbox.com/s/nf7kfj2zu9ku3il/Probes.jpg?raw=1
It\'s almost impossible to probe the really small stuff, like a US8.
I solder sewing needles to the probe tip. Use a pair of locking pliers as
a heat sink to prevent melting the probe.
As well as piercing insulation, the needles allow probing very tiny
objects such as ic pins.
Got to watch out for getting stuck on the sharp needle.
P
Phil Allison
Guest
Steve Wilson wrote:
====================
** I had imagined sewing needles were stainless steel so impossible to solder. Big surprise, the are nickel plated steel so solder very easily.
I expect pins and paper clips are too.
Cool tip - pun fully intended.....
..... Phil
====================
I solder sewing needles to the probe tip. Use a pair of locking pliers as
a heat sink to prevent melting the probe.
As well as piercing insulation, the needles allow probing very tiny
objects such as ic pins.
** I had imagined sewing needles were stainless steel so impossible to solder. Big surprise, the are nickel plated steel so solder very easily.
I expect pins and paper clips are too.
Cool tip - pun fully intended.....
..... Phil
P
Pimpom
Guest
On 9/5/2020 11:33 AM, Phil Allison wrote:
to know that they can be soldered. Thanks to you both.
I use them too, but by gripping them with alligator clips. GoodSteve Wilson wrote:
====================
I solder sewing needles to the probe tip. Use a pair of locking pliers as
a heat sink to prevent melting the probe.
As well as piercing insulation, the needles allow probing very tiny
objects such as ic pins.
** I had imagined sewing needles were stainless steel so impossible to solder. Big surprise, the are nickel plated steel so solder very easily.
I expect pins and paper clips are too.
Cool tip - pun fully intended.....
to know that they can be soldered. Thanks to you both.
J
Joe Gwinn
Guest
On Fri, 4 Sep 2020 23:03:51 -0700 (PDT), Phil Allison
<pallison49@gmail.com> wrote:
It\'s easy to soft-solder stainless steel, but you must use the correct
flux. Ordinary tinners flux (zinc dissolved in hydrochloric acid)
from the hardware store will work. There are fluxes intended for
stainless steel, generally based on phosphoric acid. Often available
from industrial hardware and/or plumbing supply stores.
Mecanically clean the stainless steel surface first, before applying
flux.
Joe Gwinn
<pallison49@gmail.com> wrote:
Steve Wilson wrote:
====================
I solder sewing needles to the probe tip. Use a pair of locking pliers as
a heat sink to prevent melting the probe.
As well as piercing insulation, the needles allow probing very tiny
objects such as ic pins.
** I had imagined sewing needles were stainless steel so impossible to solder. Big surprise, the are nickel plated steel so solder very easily.
I expect pins and paper clips are too.
It\'s easy to soft-solder stainless steel, but you must use the correct
flux. Ordinary tinners flux (zinc dissolved in hydrochloric acid)
from the hardware store will work. There are fluxes intended for
stainless steel, generally based on phosphoric acid. Often available
from industrial hardware and/or plumbing supply stores.
Mecanically clean the stainless steel surface first, before applying
flux.
Joe Gwinn
D
Don Kuenz
Guest
Joe Gwinn <joegwinn@comcast.net> wrote:
<snip>
Excellent! FWIW, \"tinning flux\" works better as a search phrase for me.
https://www.homedepot.com/p/1-7-oz-Lead-Free-Tinning-Soldering-Flux-303742/100347302
Danke,
--
Don Kuenz KB7RPU
There was a young lady named Bright Whose speed was far faster than light;
She set out one day In a relative way And returned on the previous night.
<snip>
It\'s easy to soft-solder stainless steel, but you must use the correct
flux. Ordinary tinners flux (zinc dissolved in hydrochloric acid)
from the hardware store will work. There are fluxes intended for
stainless steel, generally based on phosphoric acid. Often available
from industrial hardware and/or plumbing supply stores.
Mecanically clean the stainless steel surface first, before applying
flux.
Excellent! FWIW, \"tinning flux\" works better as a search phrase for me.
https://www.homedepot.com/p/1-7-oz-Lead-Free-Tinning-Soldering-Flux-303742/100347302
Danke,
--
Don Kuenz KB7RPU
There was a young lady named Bright Whose speed was far faster than light;
She set out one day In a relative way And returned on the previous night.