Does anyone know if a dimmer can be used for this lamp ?
Tony
East Riding of Yorkshire(UK)
Search found 42 matches
- Tue May 12, 2015 9:57 am
- Forum: Home-made microscope adaptations
- Topic: 3W LED That Works Well For Me..
- Replies: 17
- Views: 10591
- Wed Apr 08, 2015 5:10 pm
- Forum: Pictures and Videos
- Topic: Tardigrade - Water Bear - Moss Piglet
- Replies: 10
- Views: 4554
Re: Tardigrade - Water Bear - Moss Piglet
It looks to me that the Tardy is trying to walk on the underneath of the cover slip ?
Nice film
Tony
(East Riding of Yorkshire UK)
Nice film
Tony
(East Riding of Yorkshire UK)
- Wed Mar 11, 2015 6:04 pm
- Forum: Microscopes and optics
- Topic: Diopter jammed, need suggestions please
- Replies: 5
- Views: 4871
Re: Diopter jammed, need suggestions please
Hi CE It could be solidified Russian tank grease or is there a dioptre locking screw? It does look like the lens tube could be taken off by removing the base fixing screws. I don't think that removal of the prism covers would give you access to the dioptre adjustment mechanism. I'm sure you will hav...
- Fri Mar 06, 2015 11:09 pm
- Forum: Pictures and Videos
- Topic: Algae and filters
- Replies: 27
- Views: 8973
Re: Algae and filters
CE
Whatever - in my view the darkfield IS darkfield and the Rheinberg IS Rheinberg(the focus may be a tad out but they are still good images)
Tony
East Riding of Yorkshire(UK)
Whatever - in my view the darkfield IS darkfield and the Rheinberg IS Rheinberg(the focus may be a tad out but they are still good images)
Tony
East Riding of Yorkshire(UK)
- Thu Mar 05, 2015 11:10 am
- Forum: Pictures and Videos
- Topic: New to me rotifer
- Replies: 4
- Views: 2632
Re: New to me rotifer
Hi Les
I think you're right it being a Testudinella - maybe patina (but I could be wrong !)
Tony
East Riding of Yorkshire
I think you're right it being a Testudinella - maybe patina (but I could be wrong !)
Tony
East Riding of Yorkshire
- Wed Mar 04, 2015 11:29 pm
- Forum: Beginner's corner
- Topic: Attempting Rheinberg-- first steps
- Replies: 13
- Views: 9386
Re: Attempting Rheinberg-- first steps
Arthur Strange published his method in the 1980's The stops are made from polarising material. 1/ A disc ,the diam of your filter holder is cut and a quadrant is cut out. 2/ A smaller disc is cut from the polar material then centred(accurately)on the disc and accurately crossed and fixed in place.(s...
- Wed Mar 04, 2015 8:04 pm
- Forum: Miscellaneous
- Topic: How to fix a damaged book?
- Replies: 10
- Views: 6557
Re: How to fix a damaged book?
I agree with Peter - clean up the covers and laminate them.Remove the spiral from the pages and dispose of it. Get a ring binder(the kind with two split rings - some have four - for holding the pages) You may be lucky and find you can line up existing holes in the pages with the rings Of course you ...
- Wed Feb 18, 2015 3:43 pm
- Forum: Microscopes and optics
- Topic: Help with Olympus KHC repair
- Replies: 6
- Views: 5155
Re: Help with Olympus KHC repair
Hi
Have a look at this :-http://www.alanwood.net.
Look at Microscope Catalogues,instruction manuals and scroll down to Olympus KHC - Olympus KH Microscopes exploded parts diagrams
You might find what you're looking for there
Good luck
Tony
Have a look at this :-http://www.alanwood.net.
Look at Microscope Catalogues,instruction manuals and scroll down to Olympus KHC - Olympus KH Microscopes exploded parts diagrams
You might find what you're looking for there
Good luck
Tony
- Tue Feb 10, 2015 1:33 pm
- Forum: Pictures and Videos
- Topic: Some more samples from the haematococcus culture
- Replies: 13
- Views: 6161
Re: Some more samples from the haematococcus culture
I don't know what it is - but I don't think the last image is of a Volvox - it's too tidy But I could be wrong
- Tue Feb 10, 2015 1:27 pm
- Forum: Pictures and Videos
- Topic: Midge Larva head with black eyes and sharp teeth
- Replies: 4
- Views: 2770
Re: Midge Larva head with black eyes and sharp teeth
I could be wrong, but I think it's a Chaoborus sp. larva
Their transparency gives them the name "ghost" or "phantom" larvae (phantom midge)
Their transparency gives them the name "ghost" or "phantom" larvae (phantom midge)
- Wed Jan 28, 2015 10:33 pm
- Forum: Pictures and Videos
- Topic: Onion Skin Oxalate Crystals
- Replies: 9
- Views: 4195
Re: Onion Skin Oxalate Crystals
I know my eyes are not in their prime, but I cannot see any bubbles in this image.
Bubbles, in my experience, usually show as black circles with white centres.
Could you indicate where the bubbles are?
Bubbles, in my experience, usually show as black circles with white centres.
Could you indicate where the bubbles are?
- Sun Jan 11, 2015 6:40 pm
- Forum: Pictures and Videos
- Topic: Juncus inflexus
- Replies: 6
- Views: 3818
Re: Juncus inflexus
Hello Manfred
These are excellent sections,especially made with a homemade microtome.They look to be pretty thin
Perhaps you might show us it ??
Tony
East Riding of Yorkshire (UK)
These are excellent sections,especially made with a homemade microtome.They look to be pretty thin
Perhaps you might show us it ??
Tony
East Riding of Yorkshire (UK)
- Thu Jan 08, 2015 6:30 pm
- Forum: Pictures and Videos
- Topic: Heamatococcus in my culture bottle
- Replies: 16
- Views: 7100
Re: Heamatococcus in my culture bottle
gekko
You should be able to obtain Gum Arabic from an artists materials shop.
Ordinary wallpaper paste is a good substitute for Methylcellulose - provided the paste doesn't have a fungicide in its formula
Happy New Year
Tony
East Riding of Yorkshire(UK)
You should be able to obtain Gum Arabic from an artists materials shop.
Ordinary wallpaper paste is a good substitute for Methylcellulose - provided the paste doesn't have a fungicide in its formula
Happy New Year
Tony
East Riding of Yorkshire(UK)
- Sat Dec 27, 2014 5:02 pm
- Forum: Collecting microscopes and slides
- Topic: Diatom Slide
- Replies: 10
- Views: 8410
Re: Diatom Slide
Hello 75RR The mounter is Klaus Kemp,a very well established master of the art(and skill) of mounting diatoms. I have one of his 8 form test mounts and I am very well pleased with it. The slide was very clean( no air bubbles) The slide was well packaged in a plastic slide mailer for posting. Unless ...
- Mon Dec 22, 2014 11:12 pm
- Forum: Resources (online, books etc.)
- Topic: Adult intermediate level book recomendations wanted
- Replies: 8
- Views: 6542
Re: Adult intermediate level book recomendations wanted
Don't rush the eggnog
Best wishes for Christmas and the New Year
Tony
East Riding of Yorkshire(UK)
Best wishes for Christmas and the New Year
Tony
East Riding of Yorkshire(UK)
- Sun Dec 21, 2014 7:24 pm
- Forum: Resources (online, books etc.)
- Topic: Adult intermediate level book recomendations wanted
- Replies: 8
- Views: 6542
Re: Adult intermediate level book recomendations wanted
Hello again. I've just thought of another modern book - SAFE MICROSCOPIC TECHNIQUES FOR AMATEURS -by Walter Dioni. It deals with safe and simple techniques used in microscopy(as the title suggests) using everyday "chemicals". Another book would be"PRACTICAL MICROSCOPY" by Eric Marston you may get th...
- Sun Dec 21, 2014 11:18 am
- Forum: Resources (online, books etc.)
- Topic: Adult intermediate level book recomendations wanted
- Replies: 8
- Views: 6542
Re: Adult intermediate level book recomendations wanted
Hello Dale Try - "EXPLORING WITH THE MICROSCOPE" - by WERNER NACHTIGALL ,It is a well written , hands on book for the new comer or as a refresher course. Published by Sterling Publishing Co.Inc. New York ISBN 0-8069-0866-1 "THE MICROSCOPE AND HOW TO USE IT" - by Dr GEORG STEHLI DOVER PUBLICATIONS,IN...
- Sat Dec 20, 2014 7:37 pm
- Forum: Pictures and Videos
- Topic: Spirogyra
- Replies: 8
- Views: 4620
Re: Spirogyra
What are the grey steaks and blots on the second image?
- Sat Dec 20, 2014 2:00 pm
- Forum: My microscope
- Topic: My microscopes
- Replies: 8
- Views: 8909
Re: My microscopes
Re the"Dalek"
It is a Gillett and Sibert microscope not a McArthur
Sorry
Tony
East Riding of Yorkshire(UK)
It is a Gillett and Sibert microscope not a McArthur
Sorry
Tony
East Riding of Yorkshire(UK)
- Fri Dec 19, 2014 5:49 pm
- Forum: My microscope
- Topic: My microscopes
- Replies: 8
- Views: 8909
Re: My microscopes
Here are some of my microscopes,the first one is a Lomo/Swift hybrid http://i1289.photobucket.com/albums/b514/microgreen1/IMG_8492_zpsfac245b4.jpg The second is a Meopta field microscope http://i1289.photobucket.com/albums/b514/microgreen1/IMG_8494_zps7223d9dd.jpg The third and forth are two version...
- Thu Dec 18, 2014 6:33 pm
- Forum: Home-made microscope adaptations
- Topic: New project: LED conversion for LOMO Biolam
- Replies: 82
- Views: 59141
Re: New project: LED conversion for LOMO Biolam
I haven't noticed any artifacts in video as I don't do video through the microscope,I do take the occasional still image for reference,but then I use the halogen lighting. For general microscopy I'm very happy with the 12mm LED. You may have spotted the lamp on the Lomo? It's a barrel from a camera ...
- Thu Dec 18, 2014 10:32 am
- Forum: Home-made microscope adaptations
- Topic: New project: LED conversion for LOMO Biolam
- Replies: 82
- Views: 59141
Re: New project: LED conversion for LOMO Biolam
Hi Les Isn't the circuit I use for my LED lighting the same"nice clean DC supply for the LED and adjusting the brightness with a good old fashioned linear regulator" ? I haven't had heat problems in any part of the circuit - and I've used the same 12v LED bulb for approx. 4-5 years. As you say the c...
- Tue Dec 16, 2014 1:04 pm
- Forum: Home-made microscope adaptations
- Topic: New project: LED conversion for LOMO Biolam
- Replies: 82
- Views: 59141
Re: New project: LED conversion for LOMO Biolam
In answer to your questions :- 1/ Yes 2/ I use a universal regulator input - 230v~50Hz 33.4w output - 3v 4.5v 6v 7.5v 9v 12v current1200mA 14.4VA(max) 3/ 10mm 12v White 4/ No -I'm not interested in doing video - I only take a photograph if I need to :| 5/ No - they are switches - if you look at the ...
- Mon Dec 15, 2014 3:10 pm
- Forum: Home-made microscope adaptations
- Topic: New project: LED conversion for LOMO Biolam
- Replies: 82
- Views: 59141
Re: New project: LED conversion for LOMO Biolam
OK Here are some more piccies. 1 http://i1289.photobucket.com/albums/b514/microgreen1/IMG_8491_zps78185047.jpg 2 http://i1289.photobucket.com/albums/b514/microgreen1/IMG_8490_zps42da1b18.jpg 3 http://i1289.photobucket.com/albums/b514/microgreen1/IMG_8474_zps9e5b2ff4.jpg I hope they show how simple i...
- Fri Dec 12, 2014 6:28 pm
- Forum: Home-made microscope adaptations
- Topic: New project: LED conversion for LOMO Biolam
- Replies: 82
- Views: 59141
Re: New project: LED conversion for LOMO Biolam
Why make a complicated (technical)circuit when a simple,and safe,circuit will do the job? I've used this lighting base for a number of years with no problems at all. I have other microscopes(including an Olympus inverted and a Watson System 70)with built in lighting and this "non technical" base wor...
- Thu Dec 11, 2014 2:26 pm
- Forum: Home-made microscope adaptations
- Topic: New project: LED conversion for LOMO Biolam
- Replies: 82
- Views: 59141
Re: New project: LED conversion for LOMO Biolam
Hi Les My Biolam had the wheel fine focus, but I didn't like it so I got an older model off eBay and swapped the base. In fact the whole microscope has undergone many mods, I bought it new (my first microscope) :),in the early 90's. I now have a few more than that now Tony East Riding of Yorkshire(UK)
- Wed Dec 10, 2014 6:54 pm
- Forum: Home-made microscope adaptations
- Topic: New project: LED conversion for LOMO Biolam
- Replies: 82
- Views: 59141
Re: New project: LED conversion for LOMO Biolam
The contents are nothing more than wire and a domestic 12v lighting transformer
- Wed Dec 10, 2014 6:33 pm
- Forum: Home-made microscope adaptations
- Topic: New project: LED conversion for LOMO Biolam
- Replies: 82
- Views: 59141
Re: New project: LED conversion for LOMO Biolam
OK! Here are some photos(I hope) of my light base which I made a few years ago and it's still going good 1/ http://i1289.photobucket.com/albums/b514/microgreen1/microscope/IMG_8474_zpsb1cd88ea.jpg[/imgThis is the rear of the base. 2/ http://i1289.photobucket.com/albums/b514/microgreen1/microscope/IM...
- Tue Dec 02, 2014 10:51 am
- Forum: Microscopes and optics
- Topic: Dark Field for Higher Magnifications
- Replies: 11
- Views: 8239
Re: Dark Field for Higher Magnifications
Point 3 that gecko made is the best method by far, and the easiest.
If you'll forgive the pun - it's spot on
Tony
East Riding of Yorkshire(UK)
If you'll forgive the pun - it's spot on
Tony
East Riding of Yorkshire(UK)
- Wed Nov 19, 2014 1:26 pm
- Forum: Pictures and Videos
- Topic: Ortie
- Replies: 6
- Views: 4490
Re: Ortie
Interesting photographs - I liked the first one very much Are the photographs of the hairs on the stem? I ask as I have a photograph of a leaf hair on another thread started by Manfred(Brennessel-stinging nettle-urtica dioica)and the hairs are very different The leaf hairs have a small ball at the p...