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General Radio Company 1501-A Level Meter
Hersteller:
General Radio Company
Modell: 1501-A
Datum: 1952
Kategorie: Messgeräte
Gruppe: Level Meter
Beschreibung: Light Meter
Informationen:
                                    The Type 1501-A Light Meter gives a reading of the total
amount of light falling on a phototube through an aperture
at the front of the meter. Its primary use is in photography
with electric flash tubes of the xenon type (called “Speed-
lights”, “Strob”, etc.) to determine the correct camera
aperture for color-film exposure.* The General Radio Light
Meter differs from ordinary “exposure” meters in that it is
designed to sum up and indicate the total amount of light in
a short flash, rather than to indicate the average level of
continuous illumination.
This meter is also particularly useful in making periodic
checks of electric flash tubes used in speedlights to be
sure that they have not deteriorated to the point where tube
replacement or servicing is desirable. A further use is in
comparing the illumination produced by different xenon flash
tubes. It is possible to use the meter on other types of
flash units and the common combustible flash bulb, if
allowance is made for the difference in spectral
distribution of the emitted light.
For measuring the intensity of light reaching the film in
the camera, an accessory probe (Type 1501-PI) is available
which attaches to the back of the camera ground glass with
rubber suction cups.
A plate (Type 1501-P2) for mounting a standard Eastman or
Wollensack synchronized shutter is also available for
testing combustible flash bulbs.

Folgende Handbücher sind hierfür verfügbar:

General Radio Company -- 1501-A -- Service- und Bedienungsanleitung
Dateiname: GR-8219-Manual-Page-1-Picture
Dokumenttyp: Service- und Bedienungsanleitung
Seitenanzahl: 23
Dateigröße: 10.89 Mbytes (11421546 Bytes)
Sprache: Englisch
Revision:
Dokument-ID/Nummer: 684-E
Datum: 01 November 1952
Qualität: Gescanntes Dokument, alles ist lesbar.
Upload Datum:
MD5: ee9f183b8fe15b374953182e5761ea3e
Downloads: 28 seit dem 30 Dezember 2016
Informationen:
GR-8219-Manual-Page-1-Picture
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