975: Difference between revisions

975 (view source)

Revision as of 12:07, 10 July 2024

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-Type '''975 Series Potentiometers'''.
+{{GR Product
+|model=975
+|codes=
+|class=Resistance Standards
+|summary=Potentiometer Series
+|image=GR 975-J  500 ohms.jpg
+|caption=General Radio 975 Potentiometer Series
+|series=975
+|introduced=1956
+|discontinued=1973
+|designers=
+|manuals=
+* [[Media:GR 970 Potentiometer Series Instruction Sheet 0970-0100-L 08_1965.pdf|General Radio 970 Series Instruction Sheet 0970-0100-L 1965]]
+{{Catalog History}}
+}}
+The {{Title|General Radio 975 Potentiometer Series}} was introduced in {{Catalog O}} and remained available through {{Catalog 1973}}.
+The Type 975 is part of the [[970]] Series of general purpose potentiometers. They are useful for dc, throughout the audio and ultrasonic-frequency ranges.  They have the ability to be stacked while using a common ⅜ inch shaft. Stacking requires hardware that's not included. Mounting is by three 6-32 supplied screws. The basic power rating for the Type 975 is 10 watts. The 975 Series replaced the Type [[214-A]] Series of potentiometers.
 ==Specifications==
+* '''Effective Electrical Rotation:''' 320° ±2°
+* '''Total Mechanical Rotation:''' 330° ± 5°
+* '''Average Torque:''' 4 oz/in.
+* '''Power Rating:''' panel mounted 13.4 w, suspended in air 10.7 w, see the power rating chart below
+{| class="wikitable" style="margin:auto"
+|+ Type 975 Series of Potentiometers
+|-
+! Type!! Resistance !! Temperature<br>Coefficient !!Resolution !! Independant<br>Linearity !!Code<BR>Word
+|-
+|#[[975-D]] || 10 Ω   || +0.07%  || <0.5%  ||±1%   ||
+|-
+|#[[975-E]] || 20 Ω   || +0.07%  || <0.5%  ||±1%   ||
+|-
+|#[[975-F]] || 50 Ω   || ±0.002% || <0.5%  ||±1%   ||
+|-
+|#[[975-G]] || 100 Ω  || ±0.002% || <0.5%  ||±1%   ||
+|-
+|#[[975-H]] || 200 Ω  || ±0.002% || <0.5%  ||±1%   ||
+|-
+|[[975-J]]  || 500 Ω  || ±0.002% || <0.2%  ||±0.5% || EAGLEJUMP
+|-
+|[[975-K]] ||  1000 Ω || ±0.002% || <0.2%  ||±0.5% || EAGLEKISS
+|-
+|[[975-L]] ||  2000 Ω || ±0.002% || <0.2%  ||±0.5% || EAGLELEAP
+|-
+|[[975-M]] ||  5000 Ω || ±0.002% || <0.2%  ||±0.5% || EAGLEMILK
+|-
+|[[975-N]] ||  10 kΩ  || ±0.002% || <0.1%  ||±0.5% || EAGLENULL
+|-
+|[[975-P]] ||  20 kΩ  || ±0.002% || <0.1%  ||±0.5% || EAGLEPARK
+|-
+|[[975-Q]]  || 50 KΩ  || +0.002% || <0.05% ||±0.5% || EAGLEQUAD
+|-
+|[[975-R]]  || 100 KΩ || +0.002% || <0.05% ||±0.5% || EAGLERISK
+|-
+|}
+* '''# Available by request'''
 ==Links==
-* [[Media:GR 970 Potentiometer Series Instruction Sheet 0970-0100-L 08_1965.pdf|General Radio 970 Series Potentiometer Instruction Sheet 0970-0100-L 1965]]
-* [[Media:GR Exp 970 Series 01_1955.pdf|Experimenter January 1955 describing the 970 Series]]
+* [[Media:GR Exp 970 Series 01_1955.pdf|Experimenter January 1955 describing Type 970 Series]]
 ==Photos==
 <gallery>
+GR 975-J  500 ohms.jpg
+GR 975 Top.jpg
+GR 975 Front.jpg
+GR 975 Open.jpg
+GR 975 Mechanical Drawing.jpg|Mechanical Drawing
+GR 975 Power Rating Chart.jpg|Power Rating Chart
 </gallery>
 [[Category:Resistance Standards]]