Date   

Re: OT: microscope source?

Oz-in-DFW
 

I have a couple of StereoZooms with 0.5X Barlow lenses on them to extend the working height to something more comfortable for electronics. It halves the magnification, but it turns out the resulting range is a bit better for working on SMD parts.

--
Oz (in DFW) N1OZ


Re: OT: microscope source?

bill koski
 

I have a Dino Lite USB microscope similar to this one.
I has pretty good focal length and depth of field on lower powers.
And will go to X230 but you need to be in close at that power.
I bought mine for setting up the rake angle on phono cartridges
(as per Michael Fremer of Stereophile) but have used it for other things too
My boss was impressed with it and bought one for us at work as well.
We have a couple of stereo microscopes and they have their uses but often we find it more convenient
to use the USB for many things.

https://www.amazon.com/gp/product/B00FOPZETS/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1


Re: OT: microscope source?

SCMenasian
 

I have a Baush&Lomb Stereozoom, which works well for me, except when it's (relatively) fixed position prevents me from looking into equipment. I got used to it when I ran a semiconductor quality assurance/materials analysis lab.

On a recent trip to my dentist, I observed that he had magnifying loupes which attached to his glasses. A search on Amazon revealed that some (Chinese?) were quite inexpensive (around $50, if I recollect correctly). On my next trip to the dentist, I asked which brand he used and what the cost was. It was in the $3000 range. So, I guess that there is a large range for these and it might be a bit of "you get what you pay for". I did find some others (on Amazon or elsewhere?) in the $200-$300 range and that might be the sweet spot.


Re: U2101 234-0408-20 for sale?

Kevin
 

Hi Bert

It's on the top storage board, looking from the front, left hand side, just behind the two 4 pin plugs and ribbon cables that come up from underneath. The earlier chip that was used here is relatively common but then Tektronix changed the chip and some of the circuitry and this one is not so common but does the same job.

Many thanks


Re: Hardest part to get to? (2230 AC-Gnd-DC Lever Arm)

Bert Haskins
 

On 4/15/2021 7:27 AM, alastair.knights@gmail.com wrote:
So I need to replace a broken AC-Gnd-DC lever arm on my 2230. I have the replacement, now all I need to do is...

- Remove the Support Chassis
- Remove the CRT
- Remove the Vertical Attenuator and Logic assembly
- Remove the Sweep Reference assembly
- Remove the bottom shield
- Remove knobs, pausing to deal with any turned over grub screws!
- Separate the front panel board from the front panel
- Split the main chassis in half and remove the front half complete with the front panel
- Remove the secondary front panel plate that retains the AC-Gnd-DC lever arm
- Remove the Storage Circuit Board as there's not a lot left to support it in its 'raised position'

Just wondering if this is typical for Tek scopes, or can you think of any even more complex dismantling sequences to access the inaccessible?


Alastair Knights
I would nominate the 335 horizontal sweep board.

The manual is certainly no help.

I have done both and would pick the 2230 any time.

 Bert



Re: U2101 234-0408-20 for sale?

Bert Haskins
 

On 4/15/2021 4:04 AM, Kevin via groups.io wrote:
Hello all

Really looking for anyone that has the later version of the U2101 Tektronix chip (234-0408-20) used in a 2230 scope they would like to sell to me? I'm in the UK. Last chance before I have to put this lovely unit in the trash.

Thanks in advance.
I have a 2230 that lies on the border between repair and partout, what chip is this?

 Bert





Hardest part to get to? (2230 AC-Gnd-DC Lever Arm)

alastair.knights@...
 

So I need to replace a broken AC-Gnd-DC lever arm on my 2230. I have the replacement, now all I need to do is...

- Remove the Support Chassis
- Remove the CRT
- Remove the Vertical Attenuator and Logic assembly
- Remove the Sweep Reference assembly
- Remove the bottom shield
- Remove knobs, pausing to deal with any turned over grub screws!
- Separate the front panel board from the front panel
- Split the main chassis in half and remove the front half complete with the front panel
- Remove the secondary front panel plate that retains the AC-Gnd-DC lever arm
- Remove the Storage Circuit Board as there's not a lot left to support it in its 'raised position'

Just wondering if this is typical for Tek scopes, or can you think of any even more complex dismantling sequences to access the inaccessible?


Alastair Knights


Re: OT: microscope source?

 

There's only one microscope you should be buying and it's the exact
one Louis Rossmann sells, bought directly from Louis Rossmann. He has
a special version that isn't sold anywhere else. He explains it in his
videos at some point, hell if I can find them.

If someone can point to a better scope, at this sort of price, I'm all ears.

Here's a trick though. My vision isn't that great either. But I can
solder 01005 without a problem. How?

I have some large windows looking out into the northern sky
(important), and I solder on the window sill. The light is just so
much better than any artificial source you can get, and it improves
your vision dramatically. Do yourself a favor and try this trick.

Cheers

On Thu, Apr 15, 2021 at 10:36 AM Tom Gardner <tggzzz@gmail.com> wrote:

Welcome to that club :(

The choice is going to be very personal; what suits my eyes and working habits
may not be suitable for you.

Since you /will/ end up doing some experimentation, I suggest it might be worth
some quick and cheap experiments to help you decide on your equipment. In that
vein, I suggest you try these
https://www.amazon.co.uk/COVVY-Magnifier-Magnifying-Detachable-Electronic/dp/B07P957H9Z


* cheap enough to be regarded as disposable
* very widely available under many brand names from many sources
* work with your spectacles
* no problem getting a soldering iron between the lenses and the UUT
* flux residue not deposited on lenses
* work at any angle, including peering sideways into equipment cases
* multiple magnifications
* useless LED light



On 15/04/21 02:36, Brad Thompson wrote:
Hello--

Given shrinking component markings and deteriorating vision, I'm
interested in purchasing a stereo microscope with long working distance.
I stumbled across a company (Amscope) that offers a range of scopes that
look promising.

Has anyone in the group purchased from that company? Please reply
privately.

On a broader level, what's the group's experience and recommendations
for peering, say, into a plug-in's innards?

Thanks in advance, and 73--





Re: OT: microscope source?

Tom Gardner
 

Welcome to that club :(

The choice is going to be very personal; what suits my eyes and working habits may not be suitable for you.

Since you /will/ end up doing some experimentation, I suggest it might be worth some quick and cheap experiments to help you decide on your equipment. In that vein, I suggest you try these https://www.amazon.co.uk/COVVY-Magnifier-Magnifying-Detachable-Electronic/dp/B07P957H9Z


* cheap enough to be regarded as disposable
* very widely available under many brand names from many sources
* work with your spectacles
* no problem getting a soldering iron between the lenses and the UUT
* flux residue not deposited on lenses
* work at any angle, including peering sideways into equipment cases
* multiple magnifications
* useless LED light

On 15/04/21 02:36, Brad Thompson wrote:
Hello--

Given shrinking component markings and deteriorating vision, I'm
interested in purchasing a stereo microscope with long working distance.
I stumbled across a company (Amscope) that offers a range of scopes that
look promising.

Has anyone in the group purchased from that company? Please reply
 privately.

On  a broader level, what's the group's experience and recommendations
for peering, say, into a plug-in's innards?

Thanks in advance, and 73--


U2101 234-0408-20 for sale?

Kevin
 

Hello all

Really looking for anyone that has the later version of the U2101 Tektronix chip (234-0408-20) used in a 2230 scope they would like to sell to me? I'm in the UK. Last chance before I have to put this lovely unit in the trash.

Thanks in advance.


Re: 492AP screen dump

Attilio
 

Thanks John, I try as soon as I finish repairing the A54 Memory card (I replaced the EPROMs with a single EPROM 27C512 and added some HD74LS07P buffers, the EPROM 27C512 contains the data of the three original EPROMs at the correct addresses).
I hope it works.

--Cheers
Attilio


Re: OT: microscope source?

Thomas Garson
 

The carson.com thing looks promising, and at a reasonable price. It looks like the lenses are properly shaped, spaced and aligned. A lot of the head worn magnifiers have the lenses too far apart and little or no convergence, making you walleyed and dizzy as your eyes try to hold focus. I can't recall the brand of my good set, but they cost about $200.00, although that is mostly justified because the frame is made of decent steel and they have very clear glass lenses.

Thomas Garson
Aural Technology, Ashland, OR
By my calculation, the dynamic range of the universe is roughly 679dB,
which is approximately 225 bits, collected at a rate 1.714287514x10^23 sps.

On 4/14/21 7:59 PM, stevenhorii wrote:
I think you have a couple of alternatives. I have used a surplus Bausch &
Lomb Stereozoom. These used to be very pricey, but have gotten much less
expensive. They made a 4X zoom range and a 7X zoom range. I have found the
4X zoom range very sufficient. I use this for working on watches. I don't
build them, but I do replace batteries, etc. On eBay, they range from about
$100 to much more - a lot of the price seems to be in the stand. The ones
on a stand that gives you quite a bit of room to work are more expensive.
The stands tend to be heavy to ship.
Maybe more flexibility would be with a pair of head-mounted magnifiers:
I use an Optivisor (just search on Amazon or a general Google search). They
can be had with interchangeable magnification lenses and are reasonably
priced. However, I found a better alternative and have been using it
instead. It is called the Carson Optical Pro series MagniVisor like this
one:
https://carson.com/product/cp-60/
It comes with interchangeable magnification lenses. I like the absence of
the opaque frame around the lenses that the Optivisor has. The LED
illuminator may seem frivolous, but having a light source centered between
your eyes helps reduce the problem of shadowing if you have a light off to
one side.
With both the Magnivisor and Optivisor, the lenses are plastic, so they can
be scratched more easily than glass. For electronics work, there is the
potential for solder spatter. The lenses would protect your eyes, but would
likely be damaged by hot solder blobs.
I learned something from my surgical colleagues. They use surgical loupes.
The ones they use are very expensive. They used to have a fiber optic
illumination source, but the newer ones use an LED and head-mounted
battery. While the battery increases the weight, it is usually set over the
back of your head so it tends to counterbalance the weight of the loupes in
front. The light source for these is very much closer to being centered
between your eyes which really reduces any shadowing problems. They have
gotten much less expensive because use by non-surgeons has increased (and
they are being made in China). I have not yet bought a set, but I've been
looking. Just search Amazon for "surgical loupes". There is a wide range of
types and prices. Some have lights and some are just the loupes. They
generally have a medium range of magnification about 3-4X. For working on
wristwatches, I find that about 3X is sufficient.
I have not done any SMD work, so I can't tell you if loupes would be a
solution. But I did put on the MagniVisor when I was pulling components
(desoldering discrete stuff from old boards) and it helped a lot. I have
had cataract surgery and had lenses put in that cover my working distance
(about 12 inches to almost 30 inches). For close work, I need the
MagniVisor.
The nice thing about the head-mounted solutions is that it gives you a
large working area - you are not constrained by how far a stereomicroscope
stand will move - and keeps both hands free. You don't need to use one hand
if you need to refocus the microscope (though working on a flat circuit
board you would not have this problem).
Good luck! I hope you find a solution that works for you.
Steve Horii
On Wed, Apr 14, 2021 at 9:37 PM Brad Thompson <brad.thompsonaa1ip@gmail.com>
wrote:

Hello--

Given shrinking component markings and deteriorating vision, I'm
interested in purchasing a stereo microscope with long working distance.
I stumbled across a company (Amscope) that offers a range of scopes that
look promising.

Has anyone in the group purchased from that company? Please reply
privately.

On a broader level, what's the group's experience and recommendations
for peering, say, into a plug-in's innards?

Thanks in advance, and 73--

Brad AA1IP








Re: OT: microscope source?

Thomas Garson
 

Believe it or not, the camera in a better quality cell phone, with the addition of a magnifier app, makes a reasonable substitute for a microscope.

With progressive eyeglass lenses, a good set of head worn stereo magnifiers AND a large glass lens equipped bench lamp do a pretty good job for most things, but I was surprised at how much more effective the 16Mb camera and display in my Moto G5 were when used as a magnifier.

One could probably use a holder intended for "selfies" to attach a cell phone to a stand, or maybe a dial caliper holder intended for use with a machine tool.

Thomas Garson
Aural Technology, Ashland, OR
By my calculation, the dynamic range of the universe is roughly 679dB,
which is approximately 225 bits, collected at a rate 1.714287514x10^23 sps.

On 4/14/21 7:59 PM, stevenhorii wrote:
I think you have a couple of alternatives. I have used a surplus Bausch &
Lomb Stereozoom. These used to be very pricey, but have gotten much less
expensive. They made a 4X zoom range and a 7X zoom range. I have found the
4X zoom range very sufficient. I use this for working on watches. I don't
build them, but I do replace batteries, etc. On eBay, they range from about
$100 to much more - a lot of the price seems to be in the stand. The ones
on a stand that gives you quite a bit of room to work are more expensive.
The stands tend to be heavy to ship.
Maybe more flexibility would be with a pair of head-mounted magnifiers:
I use an Optivisor (just search on Amazon or a general Google search). They
can be had with interchangeable magnification lenses and are reasonably
priced. However, I found a better alternative and have been using it
instead. It is called the Carson Optical Pro series MagniVisor like this
one:
https://carson.com/product/cp-60/
It comes with interchangeable magnification lenses. I like the absence of
the opaque frame around the lenses that the Optivisor has. The LED
illuminator may seem frivolous, but having a light source centered between
your eyes helps reduce the problem of shadowing if you have a light off to
one side.
With both the Magnivisor and Optivisor, the lenses are plastic, so they can
be scratched more easily than glass. For electronics work, there is the
potential for solder spatter. The lenses would protect your eyes, but would
likely be damaged by hot solder blobs.
I learned something from my surgical colleagues. They use surgical loupes.
The ones they use are very expensive. They used to have a fiber optic
illumination source, but the newer ones use an LED and head-mounted
battery. While the battery increases the weight, it is usually set over the
back of your head so it tends to counterbalance the weight of the loupes in
front. The light source for these is very much closer to being centered
between your eyes which really reduces any shadowing problems. They have
gotten much less expensive because use by non-surgeons has increased (and
they are being made in China). I have not yet bought a set, but I've been
looking. Just search Amazon for "surgical loupes". There is a wide range of
types and prices. Some have lights and some are just the loupes. They
generally have a medium range of magnification about 3-4X. For working on
wristwatches, I find that about 3X is sufficient.
I have not done any SMD work, so I can't tell you if loupes would be a
solution. But I did put on the MagniVisor when I was pulling components
(desoldering discrete stuff from old boards) and it helped a lot. I have
had cataract surgery and had lenses put in that cover my working distance
(about 12 inches to almost 30 inches). For close work, I need the
MagniVisor.
The nice thing about the head-mounted solutions is that it gives you a
large working area - you are not constrained by how far a stereomicroscope
stand will move - and keeps both hands free. You don't need to use one hand
if you need to refocus the microscope (though working on a flat circuit
board you would not have this problem).
Good luck! I hope you find a solution that works for you.
Steve Horii
On Wed, Apr 14, 2021 at 9:37 PM Brad Thompson <brad.thompsonaa1ip@gmail.com>
wrote:

Hello--

Given shrinking component markings and deteriorating vision, I'm
interested in purchasing a stereo microscope with long working distance.
I stumbled across a company (Amscope) that offers a range of scopes that
look promising.

Has anyone in the group purchased from that company? Please reply
privately.

On a broader level, what's the group's experience and recommendations
for peering, say, into a plug-in's innards?

Thanks in advance, and 73--

Brad AA1IP








Re: OT: microscope source?

Bruce Griffiths
 

Looked at Amscope but purchased a Leica A60F on a flex arm instead.

Bruce

On 15 April 2021 at 14:59 stevenhorii <sonodocsch@gmail.com> wrote:


I think you have a couple of alternatives. I have used a surplus Bausch &
Lomb Stereozoom. These used to be very pricey, but have gotten much less
expensive. They made a 4X zoom range and a 7X zoom range. I have found the
4X zoom range very sufficient. I use this for working on watches. I don't
build them, but I do replace batteries, etc. On eBay, they range from about
$100 to much more - a lot of the price seems to be in the stand. The ones
on a stand that gives you quite a bit of room to work are more expensive.
The stands tend to be heavy to ship.

Maybe more flexibility would be with a pair of head-mounted magnifiers:

I use an Optivisor (just search on Amazon or a general Google search). They
can be had with interchangeable magnification lenses and are reasonably
priced. However, I found a better alternative and have been using it
instead. It is called the Carson Optical Pro series MagniVisor like this
one:

https://carson.com/product/cp-60/

It comes with interchangeable magnification lenses. I like the absence of
the opaque frame around the lenses that the Optivisor has. The LED
illuminator may seem frivolous, but having a light source centered between
your eyes helps reduce the problem of shadowing if you have a light off to
one side.

With both the Magnivisor and Optivisor, the lenses are plastic, so they can
be scratched more easily than glass. For electronics work, there is the
potential for solder spatter. The lenses would protect your eyes, but would
likely be damaged by hot solder blobs.

I learned something from my surgical colleagues. They use surgical loupes.
The ones they use are very expensive. They used to have a fiber optic
illumination source, but the newer ones use an LED and head-mounted
battery. While the battery increases the weight, it is usually set over the
back of your head so it tends to counterbalance the weight of the loupes in
front. The light source for these is very much closer to being centered
between your eyes which really reduces any shadowing problems. They have
gotten much less expensive because use by non-surgeons has increased (and
they are being made in China). I have not yet bought a set, but I've been
looking. Just search Amazon for "surgical loupes". There is a wide range of
types and prices. Some have lights and some are just the loupes. They
generally have a medium range of magnification about 3-4X. For working on
wristwatches, I find that about 3X is sufficient.

I have not done any SMD work, so I can't tell you if loupes would be a
solution. But I did put on the MagniVisor when I was pulling components
(desoldering discrete stuff from old boards) and it helped a lot. I have
had cataract surgery and had lenses put in that cover my working distance
(about 12 inches to almost 30 inches). For close work, I need the
MagniVisor.

The nice thing about the head-mounted solutions is that it gives you a
large working area - you are not constrained by how far a stereomicroscope
stand will move - and keeps both hands free. You don't need to use one hand
if you need to refocus the microscope (though working on a flat circuit
board you would not have this problem).

Good luck! I hope you find a solution that works for you.

Steve Horii

On Wed, Apr 14, 2021 at 9:37 PM Brad Thompson <brad.thompsonaa1ip@gmail.com>
wrote:

Hello--

Given shrinking component markings and deteriorating vision, I'm
interested in purchasing a stereo microscope with long working distance.
I stumbled across a company (Amscope) that offers a range of scopes that
look promising.

Has anyone in the group purchased from that company? Please reply
privately.

On a broader level, what's the group's experience and recommendations
for peering, say, into a plug-in's innards?

Thanks in advance, and 73--

Brad AA1IP











Re: OT: microscope source?

 

I don't have any personal experience with Amscope, but looking over their products on Amazon the prices are very reasonable, and the quality looks good (or, at least, there aren't any glaring signs of cheapness). Specifically the stands all look sturdy, even for the sub-$100 models.

-- Jeff Dutky


Re: OT: microscope source?

stevenhorii
 

I think you have a couple of alternatives. I have used a surplus Bausch &
Lomb Stereozoom. These used to be very pricey, but have gotten much less
expensive. They made a 4X zoom range and a 7X zoom range. I have found the
4X zoom range very sufficient. I use this for working on watches. I don't
build them, but I do replace batteries, etc. On eBay, they range from about
$100 to much more - a lot of the price seems to be in the stand. The ones
on a stand that gives you quite a bit of room to work are more expensive.
The stands tend to be heavy to ship.

Maybe more flexibility would be with a pair of head-mounted magnifiers:

I use an Optivisor (just search on Amazon or a general Google search). They
can be had with interchangeable magnification lenses and are reasonably
priced. However, I found a better alternative and have been using it
instead. It is called the Carson Optical Pro series MagniVisor like this
one:

https://carson.com/product/cp-60/

It comes with interchangeable magnification lenses. I like the absence of
the opaque frame around the lenses that the Optivisor has. The LED
illuminator may seem frivolous, but having a light source centered between
your eyes helps reduce the problem of shadowing if you have a light off to
one side.

With both the Magnivisor and Optivisor, the lenses are plastic, so they can
be scratched more easily than glass. For electronics work, there is the
potential for solder spatter. The lenses would protect your eyes, but would
likely be damaged by hot solder blobs.

I learned something from my surgical colleagues. They use surgical loupes.
The ones they use are very expensive. They used to have a fiber optic
illumination source, but the newer ones use an LED and head-mounted
battery. While the battery increases the weight, it is usually set over the
back of your head so it tends to counterbalance the weight of the loupes in
front. The light source for these is very much closer to being centered
between your eyes which really reduces any shadowing problems. They have
gotten much less expensive because use by non-surgeons has increased (and
they are being made in China). I have not yet bought a set, but I've been
looking. Just search Amazon for "surgical loupes". There is a wide range of
types and prices. Some have lights and some are just the loupes. They
generally have a medium range of magnification about 3-4X. For working on
wristwatches, I find that about 3X is sufficient.

I have not done any SMD work, so I can't tell you if loupes would be a
solution. But I did put on the MagniVisor when I was pulling components
(desoldering discrete stuff from old boards) and it helped a lot. I have
had cataract surgery and had lenses put in that cover my working distance
(about 12 inches to almost 30 inches). For close work, I need the
MagniVisor.

The nice thing about the head-mounted solutions is that it gives you a
large working area - you are not constrained by how far a stereomicroscope
stand will move - and keeps both hands free. You don't need to use one hand
if you need to refocus the microscope (though working on a flat circuit
board you would not have this problem).

Good luck! I hope you find a solution that works for you.

Steve Horii

On Wed, Apr 14, 2021 at 9:37 PM Brad Thompson <brad.thompsonaa1ip@gmail.com>
wrote:

Hello--

Given shrinking component markings and deteriorating vision, I'm
interested in purchasing a stereo microscope with long working distance.
I stumbled across a company (Amscope) that offers a range of scopes that
look promising.

Has anyone in the group purchased from that company? Please reply
privately.

On a broader level, what's the group's experience and recommendations
for peering, say, into a plug-in's innards?

Thanks in advance, and 73--

Brad AA1IP








Re: OT: microscope source?

Ken Eckert
 

Hello;

I use a microscope everyday for 0402 component work at work. I use a Meiji
EMZ-5 on a boom stand. Light from a cold light using a fibre optic ring
light.

Is it the cheapest option, no. Does it give you a great visual work space,
you bet.

No matter what you buy a boom stand is a must from my viewpoint. The
coldlight with a ring light is great lighting, there are ring lights with
LEDs that are good too.

On Wed, Apr 14, 2021 at 6:52 PM Clark Foley <clarkfoley@msn.com> wrote:

I have purchased a few things from AMScope; two eye pieces, focus rack and
a simple boom/base. The sale prices were fair, but I have seen better
deals at auction houses (Dove Bid and the like, not ebay) for high-quality
optical stereo microscopes. Having purchase mostly heavy hardware from
AMScope, I did not risk anything. Their shipping packaging was barely
adequate but nothing was damaged.
These days, camera based inspection style systems without direct-view
optics are very reasonably priced. That's why the all optical microscopes
are being scrapped by the truckload.






Re: OT: microscope source?

Clark Foley
 

I have purchased a few things from AMScope; two eye pieces, focus rack and a simple boom/base. The sale prices were fair, but I have seen better deals at auction houses (Dove Bid and the like, not ebay) for high-quality optical stereo microscopes. Having purchase mostly heavy hardware from AMScope, I did not risk anything. Their shipping packaging was barely adequate but nothing was damaged.
These days, camera based inspection style systems without direct-view optics are very reasonably priced. That's why the all optical microscopes are being scrapped by the truckload.


Re: OT: microscope source?

Shirley Dulcey KE1L
 

I don't have any personal experience with scopes of that type. I do know
that Louis Rossman, a notable YouTuber who is an expert on repairing Macs
(including SMD repair; see his videos), has endorsed Amscope:
https://youtu.be/C_eQrbop-J4

On Wed, Apr 14, 2021 at 9:37 PM Brad Thompson <brad.thompsonaa1ip@gmail.com>
wrote:

Hello--

Given shrinking component markings and deteriorating vision, I'm
interested in purchasing a stereo microscope with long working distance.
I stumbled across a company (Amscope) that offers a range of scopes that
look promising.

Has anyone in the group purchased from that company? Please reply
privately.

On a broader level, what's the group's experience and recommendations
for peering, say, into a plug-in's innards?

Thanks in advance, and 73--

Brad AA1IP








Re: OT: microscope source?

Paul Amaranth
 

Personal preference and all that yada yada, but I have a Mantis that I
really like. They're pricey unless you get lucky though.

Paul

On Wed, Apr 14, 2021 at 09:36:49PM -0400, Brad Thompson wrote:
Hello--

Given shrinking component markings and deteriorating vision, I'm
interested in purchasing a stereo microscope with long working distance.
I stumbled across a company (Amscope) that offers a range of scopes that
look promising.

Has anyone in the group purchased from that company? Please reply
 privately.

On  a broader level, what's the group's experience and recommendations
for peering, say, into a plug-in's innards?

Thanks in advance, and 73--

Brad  AA1IP








!DSPAM:607798c9317801478281690!
--
Paul Amaranth, GCIH | Manchester MI, USA
Aurora Group of Michigan, LLC | Security, Systems & Software
paul@AuroraGrp.Com | Unix/Linux - We don't do windows

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