A short posting with pictures of variable capacitors made using a CNC machine by 9W2CEW. The CNC cut both the rotor (moving plates) and stator (stationary plates) in one go. Refer to the last picture below.
This design is usually found in loop antenna to change the capacitance value from the shaft.
This design is usually found in loop antenna to change the capacitance value from the shaft.
Side view
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| Variable caps with laser cut cover |
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| 0.7 mm aluminium plates |
