Search Results
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3 items
The Beckman Photoelectric Spectrophotometer
- Bulletin 79
- 1941-May-20
This report is not an instruction manual, but instead an overview of the (DU) photoelectric quartz spectrophotometer, containing descriptions of its components and specifications.
The first Beckman Instruments DU…
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34 items
Instruction Manual, Beckman Models DU and B Flame Spectrophotometers
- Beckman Instructions 334-B
- 1963-Sep
The first Beckman Instruments DU Spectrophotometer was developed in 1940, when the company was still called National Technical Laboratories. Spurred by employee Howard Cary (who had previously been involved in pH meter…
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7 items
Patent for Hydrogen Tube
- 1949-Mar-08
Patent #2,463,743 for a hydrogen tube designed by H. Howard Cary and Warren Baxter during their time at National Technical Labs, a precursor to Beckman Instruments. This tube was designed for use in UV…
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66 items
Instruction Manual, DK-2 Spectrophotometer
- 378-C
- 1956-Aug
The Beckman DK Spectrophotometer was an enhancement of the DU, which expanded the instrument’s range into near-infrared. This was accomplished by chemist Wilbur I. Kaye, who began his work on science behind the DK at…
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16 items
Instruction Manual for Model B Spectrophotometer
- Bulletin 206-B
- 1949-Jul-12
The ultraviolet Model B was marketed as an easier to use and more affordable alternative to the Beckman DU Spectrophotometer.
The first Beckman Instruments DU Spectrophotometer was developed in 1940, when the company…
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4 items
Beckman Presents Micro-Leader™, A New System for the Nucleic Acid Researcher
- 1986-Jun-19
The press release announces a spectrophotometer system for use with DNA analysis.
The first Beckman Instruments DU Spectrophotometer was developed in 1940, when the company was still called National Technical…
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8 items
A Quartz Photoelectric Spectrophotometer
- 1941-Nov
The article is reprinted from the Journal of the Optical Society of America Vol. 31, No. 11, November 1941 and was presented at the Ninth Summer Conference on Spectroscopy and Its Applications, held at the Massachusetts…
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5 items
Customer lists of the first 100 DU spectrophotometers sold
- Undated
Two lists are included: one identifies companies, the second includes instrument serial numbers and shipping dates. Both documents are copies, and (per a note by Pat Ashton) the detailed list does not mention…
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82 items
Instruction Manual, Model DK-1 Spectrophotometer
- 355-C
- 1957-May
The Beckman DK Spectrophotometer was an enhancement of the DU, which expanded the instrument’s range of into near-infrared. This was accomplished by chemist Wilbur I. Kaye, who began his work on science behind the DK at…
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Beckman Model DU Ultraviolet Spectrophotometer
- 1960
The first Beckman Instruments DU Spectrophotometer was developed in 1940, when the company was still called National Technical Laboratories. Spurred by employee Howard Cary (who had previously been involved in pH meter…
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Beckman Model DB-GT ultraviolet spectrophotometer
- 1960s
Produced in the 1960s, the DB-G was a single-beam grating (as opposed to a prism) ultraviolet spectrophotometer.
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Announcing An Important New Beckman Development
- 1941-Sep-25
This advertisement, reprinted from the American Chemical Society News Edition, may be the earliest advertisement for the DU model. The page is stamped Apr 25 1961 (though the date is crossed out) and the reprint note is…
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2 items
Users of the First Hundred Beckman Quartz Spectrophotometers
- 1977-Aug-19
The photostat document lists the first hundred companies and institutions to use Beckman's quartz spectrophotometers; the original document was undated.
The first Beckman Instruments DU Spectrophotometer was developed…
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2 items
Letter from T. C. Harvie to Pat Connor
- 1951-Apr-01
The letter provides an outsider perspective on Beckman Instruments' competition for the DR spectrophotometer's market.
- Addressee Connor, R. Pat
- Author Harvie, T. C.
- Subject Ultraviolet spectroscopy, Scientific apparatus and instruments, Spectrophotometer, Beckman Instruments, Inc.
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Letter from S. Feier to R. Pat Connor
- 1951-Apr-01
This letter from S. Feier of Buffalo Apparatus Corporation provides an outsider perspective on competition for Beckman Instruments' DR Spectrophotometer market, with specific mention of the Fisher Spectrocord.
- Addressee Connor, R. Pat
- Author Feier, S.
- Subject Ultraviolet spectroscopy, Scientific apparatus and instruments, Spectrophotometer, Beckman Instruments, Inc.
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5 items
Notes re Model DU-X2
- 1954-Mar-28
This series of handwritten and -drawn notes relates to the development of the Beckman DU-X2 spectrophotometer. One of the pages appears to be missing.
The first Beckman Instruments DU Spectrophotometer was developed in…
- Creator Of Work Beckman, Arnold O.
- Subject Ultraviolet spectroscopy, Scientific apparatus and instruments, Spectrophotometer, Beckman Instruments, Inc.
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2 items
Letter from Elden D. Haller to Arnold O. Beckman
- 1954-Mar-09
The memorandum discusses a rival company's spectrophotometer, the Warren Spectracord. (Warren Electronics, Inc. would be acquired by Perkin-Elmer in 1956). The Beckman Instruments DR Spectrophotometer is framed as…
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Beckman Model 25 Spectrophotometer
- 1970s
Beckman's foray into ultraviolet spectroscopy began in 1940, when the company (then called National Technical Laboratories) produced the DU prototype. The double-beam Model 25 was introduced in the early 1970s.
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19 items
Instructions for the Beckman Photoelectric Quartz Spectrophotometer
- Instructions No. 91
- Undated
This undated draft is handwritten and hand-drawn on yellow paper.
The first Beckman Instruments DU Spectrophotometer was developed in 1940, when the company was still called National Technical Laboratories. Spurred by…
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4 items
The Vindication of the DR
- or, "Don't Fall For That Speed Stuff"
- 1954-Apr-16
The DR was a double-beam ultraviolet spectrophotometer, designed for accuracy rather than speed. Lee Cahn's skit represents an effort to begin "selling accuracy," as noted in the attached memo from J. D. MacNamara. The…
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6 items
Beckman Ends Production of Landmark Instrument
- 1976-Sep-23
This press release announcing the discontinuation of the DU spectrophotometer served as a retrospective of the instrument's development and significance.
The first Beckman Instruments DU Spectrophotometer was developed…
- Author Reilly, Mickey
- Subject Deluxe General Incorporated, Barbiturates--Analysis, Ultraviolet spectroscopy, Scientific apparatus and instruments, Vitamins--Analysis, Spectrophotometer, Vitamin A, United States. National Bureau of Standards, Toxicology, Beckman Instruments, Inc., Forensic sciences, Beckman, Arnold O.
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Letter from G. F. Hulek to Dr. Paul D. V. Manning
- 1955-Apr-26
Hulek, Arnold Beckman's secretary, responds to a letter from Manning requesting the overhaul of a spectrophotometer. She explains that Beckman himself is in Nevada observing an atomic bomb test.
