MicrobeHunter.com Microscopy Forum

Here is a Wild Heerbrugg M20 EB, EB referring to the Extended Base, which gives it a wider stance with a larger base and instead of the lamp being inserted in the side, the lamp is in the back. This one also came with the six objective turret filled with Fluotar objectives and a rotating stage. I added a trinocular intermediate tube and phase condenser. Here it is in the middle, with two other M20s for comparison. Here is a write up by Ian Walker on Micscapes:
http://www.microscopy-uk.org.uk/mag/art ... 20-eb.html

Always so nice (read: instructive) to get views of all sides! You say you added a phase condenser, but what about phase objectives? First time I've ever seen, or noticed, a side-mounted lamp - interesting. It's neat to see the "different" style trinoc head. Still digging those epi objectives, would sure love to see how they work firsthand! What is the vertically mounted turret on the metallurgic/petrographic (?) scope (left in top pic) again?

Cool post as usual, Charles, and thanks once again for letting us in on the fun!

Congratulations on a new microscope Charles! It has been DAYS since your last one!

Looks like the all have trinocular tubes. The non-Fluotar objectives sure are massive.

I don't get it though; are there secondary illuminators on them? (The one on the right appears to have an upper and lower?)

KurtM wrote:You say you added a phase condenser, but what about phase objectives? First time I've ever seen, or noticed, a side-mounted lamp - interesting. It's neat to see the "different" style trinoc head. Still digging those epi objectives, would sure love to see how they work firsthand! What is the vertically mounted turret on the metallurgic/petrographic (?) scope (left in top pic) again

Thank you!

I have a separate four objective turret with phase objectives and the turrets are easy to swap out by flipping the lever on the left and sliding it out and another in.

The majority of the Wild M20s have side mounted lamps, which I don't really like, although there is a the field diaphragm on the side lamps so it does make it easier to adjust for Kohler. The EB has the diaphragm knob on top of the base on the right near the rear.

The veritically 'mounted turret' is an interference unit for metallurgic use.

charlie wrote:Congratulations on a new microscope Charles! It has been DAYS since your last one!

Looks like the all have trinocular tubes. The non-Fluotar objectives sure are massive.

I don't get it though; are there secondary illuminators on them? (The one on the right appears to have an upper and lower?)

Thank you!

Well, I have aquired five scopes since the last one I posted. I just didn't want to bore everyone with every purchase. I got a Wild M5A Stereo scope, which I've wanted for a long time, and which I will post pictures of as soon as I get a suitable stand. I also bought a dual illumination Reichert EpiStar with BF, DF and DIC, as well as a AO/Reichert 580 Stereo scope with phototube and besides this M20 EB, I have another M20 on the way.

The large objectives are for Epi illumination and darkfield for metalurgical use. There is a separate lamp which attaches to the rear of the epi unit but I didn't want all the wires hanging down for the picture. And the one on the right can be used for transmitted as well as epi illumination.

Beautiful scopes. I enjoy your posts, Charles. Thank you for sharing.

Congratulations, Charles, and yes, thank you for letting us have a peak at the trio: just looking at the superb workmanship (even through the pictures) gives one pleasure.

Thank you zzffnn and gekko!

You guys enjoy looking at protist, which I enjoy through you, and I enjoy the microscopes, which I hope you all enjoy.

Charles, I enjoy the look and the feel of beautifully machined or crafted items, and those Wild microscopes are superb.

Charles,

What a beautiful group of machines. To have one is remarkable, but three is astounding.

I certainly understand the draw they represent, all but impossible to resist. I think it's wonderful that you have found a pursuit that brings you so much joy, and thank you for sharing them with us.

Rod

Thank you Rod!

Hi Charles, these 'scopes are sublime - absolutely beautiful! The pictures are a joy, goodness knows how much enjoyment you must get from their collection! Fantastically fine examples of the way things used to be engineered - no looking-under-the-bonnet needed here - they are radiating quality! Lovely!
My goodness, I bet the smell of these beauties is a joy in itself - I drool.....

Thanks for the treat.

Thank you John! They are good examples of fine engineering and workmanship which went into scopes of this era, but they smell of lube and cleaner right now.

Charles wrote:Thank you John! They are good examples of fine engineering and workmanship which went into scopes of this era, but they smell of lube and cleaner right now.

No Charles - they smell of pure quality and finesse! I'm sure I can even detect a whiff at this distance, from your fine pictures!

Beautiful microscopes, Charles.
I'm new to the forum, but just finished restoring an M20 for myself.
Only way to get a complete one.

I need to figure out how to put pix up here.

What an instrument! It's like a Leikaflex camera on a Norden bombsight.

Jim

Thank you Radazz.

There are some instructions in the Welcome to the Forum section on two ways to show photos:
viewtopic.php?f=8&t=5

Let's give this a try...

Beautiful! Looks like it worked.

Still want to find the filter carousel, and would like a 20x objective.

Any suggestions for a light oil for the spring nose on the HI 100?
It can stick and be a slide breaker. Had dried immersion oil all over it. Cleaned all I could with acetone and lens paper. But the receding barrel is still sticking.

I should probably just replace it. I would prefer a 20x or a 60x.
Any oil immersion work I might try will be on my Zeiss Standard instead, anyway.

I need to sell the leftover parts for the M20 before I can spend any more.

I have no advice on your 100x sticking retractable nose. Probably a good idea to get something else. If the 100x is pretty much hopeless, maybe a small drop of light oil. Try a synthetic oil from Nye. I think the lens optics are enclosed in it's own capsule. This ebay seller has a filter carousel along with a photo tube and phase condenser at decent prices:
http://www.ebay.com/itm/WILD-HEERBRUGG- ... SwzJ5XcXCB
http://www.ebay.com/itm/WILD-HEERBRUGG- ... SwFwpXcXGF
http://www.ebay.com/itm/WILD-HEERBRUGG- ... SwzJ5XcXCh

Sometimes the sticking of the retractable barrel is caused by a bind between the retractable part and the outer objective cover. If you are able to remove the objective cover you may see additional contamination. I have used fine sandpaper to clean and smooth the inner diameter of the objective cover and that has eliminated the problem. Of course, there are other things that may be happening rendering my advice moot.

lorez

Thanks for the suggestions. I believe I've got it sorted. Under the stereo microscope I was able to see a tiny spot of dried oil on the barrel. I found a thicker oil to work best. Crosman pell gun oil of all things.

Any advice on the best place to sell this?
The stage is adapted to the wild stage mount.
I wanted to use this stage on mine because it has no plastic gears, but couldn't find a slide finger clip for it.

Thanks for the links, Charles, I bought the carousel.
Can't afford the trinocular adapter, I use a Zeiss Standard for photography and frankly don't have a camera that can see the difference between it and the M20. It's only perceptible to my eyes and fingers.

Hi Radazz,

I've sent you a PM.