Given the shortcomings of low power battery testers/meters for checking
certain components that typically run at considerably higher working
voltages where any fault may only become apparent, has anyone any
thoughts on the utility, or otherwise, of these devices?

http://www.ebay.co.uk/itm/Transistor...onent-Tracker-
Tester-Probes-BNC-Cables-/161294643173?
hash=item258de8efe5:m:miccP4BhvzYiDpcErFn7FDw

On Tuesday, January 26, 2016 at 9:03:11 AM UTC-5, Cursitor Doom wrote:
Given the shortcomings of low power battery testers/meters for checking
certain components that typically run at considerably higher working
voltages where any fault may only become apparent, has anyone any
thoughts on the utility, or otherwise, of these devices?

http://www.ebay.co.uk/itm/Transistor...onent-Tracker-
Tester-Probes-BNC-Cables-/161294643173?
hash=item258de8efe5:m:miccP4BhvzYiDpcErFn7FDw

Never used one.. but it says octopus. I recall this curve tracer that
a navy tech showed me once. A couple of transformers and R's..

Google octopus curve tracer and maybe you'll end up building on of your own.

George H.

On Tue, 26 Jan 2016 06:19:13 -0800, ggherold wrote:

On Tuesday, January 26, 2016 at 9:03:11 AM UTC-5, Cursitor Doom wrote:
Given the shortcomings of low power battery testers/meters for checking
certain components that typically run at considerably higher working
voltages where any fault may only become apparent, has anyone any
thoughts on the utility, or otherwise, of these devices?

http://www.ebay.co.uk/itm/Transistor...cer-Component-
Tracker-
Tester-Probes-BNC-Cables-/161294643173?
hash=item258de8efe5:m:miccP4BhvzYiDpcErFn7FDw

Never used one.. but it says octopus. I recall this curve tracer that a
navy tech showed me once. A couple of transformers and R's..

Google octopus curve tracer and maybe you'll end up building on of your
own.

George H.

Thanks. I wouldn't have thought there was much to these things,
especially since they rely on an external scope display. I'm just curious
as to how useful they are compared to more common test kit.

"Cursitor Doom" wrote in message
...
Given the shortcomings of low power battery testers/meters for checking
certain components that typically run at considerably higher working
voltages where any fault may only become apparent, has anyone any
thoughts on the utility, or otherwise, of these devices?

http://www.ebay.co.uk/itm/Transistor...onent-Tracker-
Tester-Probes-BNC-Cables-/161294643173?
hash=item258de8efe5:m:miccP4BhvzYiDpcErFn7FDw

All this ammouts to is a transformer, capacitor and resistor in a box. Just
do a search for an Octopus component tester. Years ago it was of some use
and may be today if you have a known good board and one you are testing.

Today there are much beter component testers out. For about $ 20 you can
get the circuit board of a component tester that is much beter for testing
components out of the circuit.

This ebay number is one of many of them.


291585134524

On Tue, 26 Jan 2016 10:08:48 -0500, Ralph Mowery wrote:

This ebay number is one of many of them.


291585134524

Thanks Ralph.

On Tue, 26 Jan 2016 14:00:18 -0000 (UTC), Cursitor Doom
wrote:

Given the shortcomings of low power battery testers/meters for checking
certain components that typically run at considerably higher working
voltages where any fault may only become apparent, has anyone any
thoughts on the utility, or otherwise, of these devices?

http://www.ebay.co.uk/itm/Transistor...onent-Tracker-
Tester-Probes-BNC-Cables-/161294643173?
hash=item258de8efe5:m:miccP4BhvzYiDpcErFn7FDw

Common commercial unit is the Huntron 'Tracker' with built-in display.
Can be of some use on production test bench, but doesn't replace
visual inspection and simple open/short or bias testing.

RL

On Tue, 26 Jan 2016 10:28:21 -0500, legg wrote:


Common commercial unit is the Huntron 'Tracker' with built-in display.
Can be of some use on production test bench, but doesn't replace visual
inspection and simple open/short or bias testing.

RL

Nice - but a bit pricey!

"Cursitor Doom" wrote in message
...
On Tue, 26 Jan 2016 10:28:21 -0500, legg wrote:


Common commercial unit is the Huntron 'Tracker' with built-in display.
Can be of some use on production test bench, but doesn't replace visual
inspection and simple open/short or bias testing.

RL

Nice - but a bit pricey!



I keep a home made "octopus curve tracer" (two-lead type) on a dedicated
scope for the past 30+ years.

Absolutely WOULD NOT be without it.

Instantaneously find one bad amp channel out of many, very quick checks of
capacitance, inductance, resistance, diodes, fets, transistors, etc.

Once you get used to it and sort of "get it" as to what the device is
telling you, it will make you a better, faster technician.


Mark Z.

On Wed, 27 Jan 2016 06:24:46 -0600, Mark Zacharias wrote:

I keep a home made "octopus curve tracer" (two-lead type) on a
dedicated scope for the past 30+ years.

Absolutely WOULD NOT be without it.

Instantaneously find one bad amp channel out of many, very quick checks
of capacitance, inductance, resistance, diodes, fets, transistors, etc.

And it's capable of testing these components at their intended working
voltages and currents? This seems to be the main shortcoming with almost
all the small battery powered testers.

"Cursitor Doom" wrote in message
...
On Wed, 27 Jan 2016 06:24:46 -0600, Mark Zacharias wrote:

I keep a home made "octopus curve tracer" (two-lead type) on a
dedicated scope for the past 30+ years.

Absolutely WOULD NOT be without it.

Instantaneously find one bad amp channel out of many, very quick checks
of capacitance, inductance, resistance, diodes, fets, transistors, etc.

And it's capable of testing these components at their intended working
voltages and currents? This seems to be the main shortcoming with almost
all the small battery powered testers.


Mine uses a 6.3v AC transformer so no attempt is made to operate devices
under load.

mz

On Wed, 27 Jan 2016 00:43:30 -0000 (UTC), Cursitor Doom
wrote:

On Tue, 26 Jan 2016 10:28:21 -0500, legg wrote:


Common commercial unit is the Huntron 'Tracker' with built-in display.
Can be of some use on production test bench, but doesn't replace visual
inspection and simple open/short or bias testing.

RL

Nice - but a bit pricey!

Hence the jig on offer. Just add your own uncommited oscilloscope...

You won't want to hook it up and disconnect it every time you need to
switch over.

RL

On Thu, 28 Jan 2016 16:40:00 -0500, legg wrote:

On Wed, 27 Jan 2016 00:43:30 -0000 (UTC), Cursitor Doom
wrote:

On Tue, 26 Jan 2016 10:28:21 -0500, legg wrote:


Common commercial unit is the Huntron 'Tracker' with built-in display.
Can be of some use on production test bench, but doesn't replace
visual inspection and simple open/short or bias testing.

RL

Nice - but a bit pricey!

Hence the jig on offer. Just add your own uncommited oscilloscope...

You won't want to hook it up and disconnect it every time you need to
switch over.

RL

Sounds like a useful addition to any test bench. I've probably already
got a suitable transformer lying around waiting for just such a project.
Plus no shortage of "uncommitted oscilloscopes."