Hallicrafters xtal filter

[John Kolb]

Picked up in my wonderings a rectangular metal can, about
1" x 2" x 4", labeled Hallicrafters  Manson Lab. div.
crystal filter P/N D-100-019-006.  Anyone know what this
might be used in, or any other info? Doesn't seem to be
455 kHz.

John  KK6IL  jlkolb at cts.com

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