
AO (American Optical) Spencer
Microscope Manuals and Catalogs
Ok, what is going on here . . .?
I'm a microscope enthusiast and amateur microscopist, if you will, and the microscopes that I own (OK, that I could afford :-) although it would be hard to buy something really better -- they are excellent!) are AO (American Optical ) or AO Spencer microscopes. Because these instruments all date from the 1950's and 1960's or before, information on them is becoming harder and harder to find . . . so here you go!
| What Are You Looking for? | |
| AO/Spencer Microscope Manuals and Catalogs? | Below, on this page -- scroll down. |
| To Learn A Little AO Spencer History? (Including finding out the date of manufacture of your scope from the serial number) | Try Here. |
| A Reference of AO/Spencer Objectives? | Click Here. |
| A Reference of AO/Spencer Eyepieces? | See Here. |
| A Reference of AO/Spencer Bulbs for Your Scope? | Right Here. |
| Repair Tips for AO Microscopes? | Click Here. |
| Some 'Odd and Ends' Information on AO/Spencer Scopes? | Try Here. |
| Manuals and Catalogs of Other Manufacturers (Zeiss, Leitz, B&L, etc.)? | Check Gordon's site Here. If you happen to have a Zeiss-Jena Microscope then go here. Another small, but growing, cache of manuals is here. If you have a B&L Balplan microscope -- go here and here. Leitz Pol microscope info -- don't miss here. A new resource has appeared for Leitz owners! Don't miss here. |
| Advice on Buying a Microscope? | Try Gordon's page Here. |
| Advice on Microscopy and Using Your Microscope? | |
| You should read Micscape every month for fascinating articles on the world of amateur microscopy. | The encyclopedia of all microscope knowledge on the web is Molecular Expressions -- spend some time there if you can. |
| Many knowledgeable microscope enthusiasts frequent Yahoo's 'Microscope' forum. If you need to locate a manual for particular microscope, or just need help with pretty much any microscope related issue, join the forum (it's free!), leave a message, and they often can help or direct you to a source of help. | Also visit and query the Amateur Microscopy net which also is frequented by knowledgeable enthusiasts and, as a bonus, contains arguably the best photomicrography found anywhere in the world (professional or amateur!). |
| Robert Bagnell's 'Light Microscopy', a text for his Pathology 164 course at the UNC School of Medicine, is a very excellent, complete, on-line book on microscopy. | Zeiss's 'Microscopy from the very beginning' is another excellent introduction to modern microscopy (note: download the pdf brochure). |
| Looking
for advice on cleaning your microscope's optics?
First, see the excellent page here.
Remember though that the cement used in microscope optics changed greatly
over the years and you should definitely consult the manufacturer's directions
in the manual for your specific microscope. A good Yahoo
Microscope Group thread on this topic can also be found here.
(note: The Zeiss document, 'The Clean Microscope', referred to in the
thread, can be found here
(download the brochure)).
Again, though, for AO Microscopes, what cleaning agent to use shouldn't be a mystery because recommendations are given by AO in the manuals for your specific scope as found below. |
|
Note: Many of these files were furnished to me by Robert Tolley, after I had contributed a Darkfield manual and the newer Series 10 manual, who in-turn, received it from others, so I believe that many amateurs have probably contributed to this collection over the years. I have since tried to add to it as documents or scans have been kindly sent to me, or I have been able to bid on them on eBay.
I am searching for an AO Series 2 or Series 4 reference manual, if you have one, please contact me
1. The AO Series 10 Manual:
A. The 1967 version is available at Gordon's site in two parts: part a & part b.
B. The 1969 version is available right here (2.98 MB).
C. The 1974 version is also available right here (2.52 MB).
Note: The Dual Viewing Adapter Manual is available here.
2. The AO Series 10 Catalog (3.65 MB) note: Patrick Moore has kindly hosted this file on his site.
3 The AO Series 10 Darkfield Manual (0.65 MB)
4. The AO Series 10 PhaseStar Manual (8.01 MB pdf from www.science-info.org/micro/docs/AO-Spenser/)
5. The AO Series 10 PhaseStar Catalog (1.92 MB)
6. The AO Cycloptic Manuals:
A. 1962 Reference Manual (1.64 MB)
B. 1977 Reference Manual (13.96 MB pdf file, courtesy of Eldred Spell.)
C. Cycloptic Dual Viewing Addendum (0.2 MB)
7. The AO Cycloptic Catalog:
A. The 1962 version (4.20 MB) note: Patrick Moore has kindly hosted this file on his site.
B. The 1975 version (3.15 MB) note: Patrick Moore has kindly hosted this file on his site.
8. The AO Series 2 & 4 Catalog (4.64 MB) note: Patrick Moore has kindly hosted this file on his site.
9 The AO Series 2 & 4 PhaseStar Manual (1.45 MB)
10. The AO Series 2 & 4 PhaseStar Catalog (0.98 MB)


11. The Effective Use and Proper Care of the Microscope note: A must read!
This book was revised and republished over the years as AO Spencer's microscope line evolved. There are:
| The 1941 edition (7.44 MB) | Eldred Spell has kindly contributed this edition which features the earlier black scopes such as the Model 33. Patrick Moore has kindly hosted this file on his site. |
| The 1949 & 1954 edition (5.30 MB): | These editions are identical (i.e. the 1954 edition was simply re-published from the 1949 edition) and feature the newer black scopes such as the Series 35, Scholar's Microscope, etc. Patrick Moore has kindly hosted this file on his site. |
| The 1956 edition & 1958 edition (5.40 MB) | These editions are identical (thanks to Jason Raitano for sharing scans of his 1956 edition to compare with my 1958 example). Features the MicroStar Series 2 & 4 'gray' scopes and associated accessories and models. Patrick Moore has kindly hosted this file on his site. |
| The 1959 & 1960 editions | Rumored versions . . . I have not seen them to confirm. |
Why am I trying to get a copy of multiple versions? Unreasoned obsession? No . . . well maybe :-) . . . the reason one might want a specific year is that it contains instructions for a certain range of microscope models. I believe that during the years above, these are the only 'users manuals' AO Spencer provided for their microscopes.
12. The AO Series 15 & 35 Catalog (1.97 MB)
13. The AO Series 15 & 35 Phase Catalog (1.81 MB)
Also: Directions For Use of Spencer Phase Turret Condenser (For No. 8M Phase Microscope, and No. 15M or No. 35M Medical Microscopes).
14. The AO Blue Book (25.2 MB) note: It's 208 pages!, but this is a famous publication you should see! Patrick Moore has kindly hosted this file on his site
15. I Saw Them Making Microscopes (1.24 MB) note: This is a 20-page 'walk through' of the AO Spencer plant in 1937.
16. The Microscope - Construction, Use, and Care 1926 (6.25 MB) note: This scanned booklet courtesy of Eldred Spell. Patrick Moore has kindly hosted this file on his site.
17. AO Series 40 Teaching Stereo Catalog (0.67 MB) note: Patrick Moore has kindly hosted this file on his site.
18. AO Series 40 Teaching Stereo Manual (1.63 MB) note: Patrick Moore has kindly hosted this file on his site.
19. Spencer Medical Microscopes:
A. 1935? (a guess) (0.89 MB) note: a sales brochure featuring brochure featuring models 13MH and 33MH scopes.
B. 1937 (2.1 MB) note: sales brochure, a few more bits of information added to the above, plus more pictures.
20. Spencer Microscope Accessories (1.91 MB) note: 18 pages long; it seems to be a subset of the AO Blue Book (above).
21. Spencer Lamps (0.94 MB) note: 10 pages long; published Feb of 1935, and describes Spencer Microscope Lamp offerings.
22. Spencer 'How to Use and Care for the Microscope' (1.78 MB) -- 30 pages, most probably from 1910. Features the Series 45 and 20.
23. Spencer 1938 'The Evolution of the Microscope' (3.05 MB) note: This scanned booklet courtesy of Eldred Spell.
24. Spencer 1943 'The Use of Polarizing Microscopes (3.52 MB)
25. Three American Microscope Builders, a publication of AO Spencer in 1943 (35MB pdf file), and about microscope builders Charles Spencer, Robert Tolles, and Herbert Spencer. (note: This document is housed on Eldred Spell's site).
26. Stereoscopic Microscope Reference Manual -- Series 20, 21, 23, 25, 26, 27, and 28. A 1967 American Optical publication, written by Oscar W. Richards. note: This document courtesy of Matt Brin.
| A very nice 'on-line' AO Series 20 Microscope Manual can be found here, and another one here in pdf format (6.8 MB -- includes the phase manual too). |
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Looking for AO Series 150 Microscope
documentation? See the manual
and the catalog
(dated 03/75) in pdf format. note: Patrick
Moore has kindly hosted these files on his site.
I also have a newer, but much smaller, catalog produced under the AO/Reichert name (dated 05/85) that I can send you if you'd like. |
Reichert is back in the microscope servicing business and they have scans of the newer AO/Reichert scope manuals here.
(Note: this appears to be a growing collection that now holds various AO-Reichert, and Reichert-Jung, Series 100, 110, 120, 150, and 160 manuals and references. Also, they seem to be very helpful and friendly too -- so they may be able to answer your questions if you drop them an email or a phone call about one of the newer models).
I also have scanned images of the following (listed in no particular order). Patrick Moore -is- hosting the SteroStar materials and some of the others (just click on the link) . A special thanks to www.bairbrepaws.com, who also provides space for some of these.
Note: for those files without live links, if you send me an email I will email them to you, or at least provide a link to them from this site from which you can download them -- no problem.
| Catalogs: | Catalogs (cont.): | Manuals: | Manuals (cont.): | Other: |
| Spencer Lens Co. 1924 Catalog | AO Series 10 Fluorescence Catalog | AO 635 Camera Reference Manual | Reference Manual: PolarStar Series 2300, N2300, L2300 | Reichert 'Principles of Phase Contrast' Bulletin |
| Spencer Lens Co. 1929 Catalog | H10 and H20 FluoreStar Vertical Illum. Catalog | AO 682 Camera Reference Manual | Reference Manual: AO StereoStar/Zoom (1979) | Image of complete AO-Baker Interference Microscope (at Gordon's site - see also closely related manual here) |
| Spencer Lens Co., ca 1930, announcement of the 'New Low Fine Adjustment' (courtesy of David Rose) | AO 10 PhaseStar L10 & H20 Catalog | AO Filar Micrometer Eyepieces Manual | Parts Manual: AO StereoStar/Zoom (1979) | Instructions for the Model 1573 Micro-glide Stage 'F' for Series 60 (courtesy of Eldred Spell) |
| AO DIC and DICV catalog | AO 10 Epi-Lume Catalog | AO StereoStar Manual (1975) | Reference Manual: AO Spencer Fluorolume Illuminator model 645 | Procedure for replacing optics on the AO-Baker Interference Microscope |
| AO Reichert HB Meter Catalog | AO 10 FluoreStar H20 & V20 Catalog | Reichert StereoStar Manual (1990) | Reference Manual: No. 637 StereoCamera | Installation Instructions: Model 44 Transilluminating Base Kit |
| Reichert Microstar IV Catalog | AO Series 20 Catalog | AO 10 Dual Viewing Adapter Manual | Reference Manual: Photomicrographic Cameras 682, 684, 1070 | Optical Alignment Procedure: Single Phase outfit No. 1206PPL for Series 110/120 |
| Reichert Darkfield Colony Counter Catalog | AO Reichert 100 Catalog | AO Series 60 Manual | Reference Manual: MetalStar 2200 Metallurgical Microscope (courtesy of Jay Stanley) | Series 10 & 20: Instructions for using a Miller disc for counting reticulocytes |
| AO Reichert Water Bath Shaker Catalog | AO Series 110 Catalog | 'AO ExpoStar Manual' (i.e. Photomicrographic Cameras models 1052F, 1053F, and 1055F Reference Manual) combined with the ExpoStar and PhotoStar catalogs | Reference Manual: Photomicrographic Cameras 1052B, 1053B, 1055B | Looking for instructions on reticles? Look Here |
| AO Reichert BioStar Inverted Catalog | AO Series 110 & 120 PhaseStar Catalog (1.7MB zip file) | AO Series 110 Manual | Reference Manual: Photomicrographic Systems for No. 580 StereoStar | AO PolStar (Series 110/120) Polarizing Microscope Brochure (6.37 MB pdf from www.science-info.org/micro/docs/AO-Spenser/) |
| AO Reichert Product Review Forensic Catalog | AO Series 110 Objective Catalog | AO Series 120 Manual | Reference Manual: AO ExpoStar Shutter Control no. 1190 | |
| Reichert Hemacytometer Catalog | AO Series 150 Catalog | AO Series 160 Manual | Reference Manual: AO Photomicrographic cameras 679, 680 | |
| AO Reichert TS-Meter Catalog | AO Reichert 150 Catalog | TV Camera Adapters for Diastar and Microstar IV -- Cat#'s 1900 and 1900T(courtesy of Jay Stanley) | Reference Manual: Series 1860 Industrial Microscope | |
| AO Polanret Catalog | AO Reichert 151 Phase Catalog (courtesy of Gene Goldsand) | Effective Use and Proper Care of the AO Microtome - 1975 (courtesy of Jay Stanley) -- 12.6MB pdf file | Parts Manual: Series 1860 Industrial Microscope | |
| AO UltraStar Catalog | AO Reichert 151 Catalog | Effective Use and Proper Care of the AO Microtome -- 1959 (includes models 815, 820, and 860) (courtesy of Stephen Rozak) -- 16.2MB pdf file | Reference Manual: Series 110/120 PhaseStar (courtesy of Eldred Spell) | |
| AO ExpoStar and PhotoStar Camera Catalogs, combined with the 'AO ExpoStar Manual' | AO Reichert 160 Catalog | "Key to Oil and Grease Points on the AO 820 Microtome" (courtesy of Stephen Rozak) | Reference Manual: AO No. 2053 Fluorescence Lampholder (courtesy of Eldred Spell) | |
| AO Starlight Microprojector Catalog | AO Reichert 310 Catalog | Photomicrographic Equipment Reference Manual (Series 4 era (late '50s) at Gordon's site) | Reference Manual: Dual Viewing Teaching Microscopes models DN50, DN60 | |
| AO StereoStar/Zoom Catalog | AO 820 Rotary Microtome Catalog | AO Cycloptic Photographic Tube Adapter (Model No. 638) Reference Manual (courtesy of Jay Stanley) | Reference Manual: TV Camera Adapters Cat# 1056 & 1056T -- Series 110/120 (courtesy of Eldred Spell) | |
| Reichert DiaStar Catalog | AO Orthophot Guide and Catalog (courtesy of Jay Stanley) | AO50 Reference Manual (and Parts Manual) | AO Cat# 3050 Military Field Scope (3.7 MB zip file) (courtesy of Wallace Kelley) | |
| AO Reichert Product Review Catalog | The Spencer Bright-Line Haemacytometer ( 4.84MB zip file)* |



Looking for the Joseph Leidy
Microscopy portal? Click Here.
| Steven Born notes that the 'Smithsonian Instruments for Science 1800-1914' collection has a couple of early AO Spencer related materials. | ![]() |
| Central Scientific Company Catalog (1911) | Shows pricing and descriptions for Spencer models 36, 40, 66, 70, etc. and some accessories |
| Spencer Lens Company Catalog (1896) | Shows pricing and descriptions for Spencer models 1, 2, 3 -- you can't get much earlier than that! :-) |
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