ZKNU-3

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General Radio ZKNU-3
Fluted Knob
General Radio ZKNU-3 Fluted Knob

Available from 1948 to 1956

Manuals
  • Manual Needed.
Catalog History
 Document Year Page
Catalog L 1948 202
Catalog M 1951 225
Catalog N 1954 236
Catalog O 1956 238
(All manuals in PDF format unless noted otherwise)

The General Radio ZKNU-3 Fluted Knob was introduced in Catalog L (1948) and remained available through Catalog O (1956).

The Type ZKNU-3 is a fluted type knob with skirt diameter of 1-5/16". It accepts both 3/8" and 1/4" shafts using a supplied bushing. It is constructed of black phenolic resin and has a "spinner" attached. The spinner is useful when a slow motion dial is encountered. See the photo below of the Type 722-ME.

See the KN article for all members in the series.

Specifications

  • Color: black
  • Skirt Diameter: 1-5/16"
  • Overall Depth: 3/4"
  • Shaft Size: 3/8" and 1/4" bushing supplied
  • Composition: phenolic resin

Links

Photos