Radio-Lectric no. 420 template use? Wondering what this would be used for, found in a box with some radio rule circuit diagrams. Knob turns to loosen/tighten, all three metal pieces slide.

4.7 (791) · $ 13.50 · In stock

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Radio circuit without capacitor C' (a), telephone amplifier (Figure b

Set of metal tools. Tongs look to about two feet long. Includes files, tong with a point and fly nut to hold something, and what appears to be hole punches. : r/whatisthisthing

Rotring compass set (532 208), mid-1970s. Chrome-plated drafting instruments made by Haff in Germany for Rotring. Set includes a 6-inch wingset compass, extension bar, pump compass, and stainless steel 2mm inserts. The

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Set of metal tools. Tongs look to about two feet long. Includes files, tong with a point and fly nut to hold something, and what appears to be hole punches. : r/whatisthisthing