TC-1 Seismometer
Read MoreAdapter train for testing A/D converter
An older open frame DI-194 was used instead of this unit, but is shown for reference.
Coil and Damper in Machined Rings
Instead of winding my own coil, this coil was used. It's was from an old 3-vidcon tube video camera. Testing indicates that it works very well.
Machining a Window in the Main Tube
Since we're not using an acrylic tube, a window was needed to view and center the magnets in the coil and damper. This will be covered by a window to prevent any interference by air currents. Workholding is pretty minimal, since it's so easy to machine.