Perkin Elmer model 337 optical null type grating infrared spectrophotometer
For details and operation see US Patent 3,144,498 and US Patent 2,888,623
Also see "Perkin Elmer?s Infracord Infrared Spectrometer" The Internet
Journal of Vibrational Spectroscopy (scroll down to articles 3 and 4)
Alternatively see "Perkin Elmer?s Infracord Infrared Spectrometer" The Internet
Journal of Vibrational Spectroscopy (copy)
Perkin Elmer Instrument News
Pe-News-1958-Model-21
PENews1959-221
PENews1959-RussianIRSpec
PENews1960-Infracords
PENews1961-421-202-237-137B
PENews1962-421-SpuriousBands
PENews1965-microsampling-621
Pe-News-1975
PENews-521
PENews-Coatings-Windows
Penews-Kbr
Image 1: Front view. Controls on the front of the instrument on the control panel include the 4000-1200/1333-400 cm-1 switch upper left, the stop/reset/fast/slow scan control lower left, the slit control middle, on/off switch top right and the sample beam attenuator control lower right.
Image 2: Side view showing the gain and balance controls
Image 3: chart holding drum shown removed from the instrument. The lever on the top of the drum is used to open the clip holding the chart paper.
