US$ 129.00
5-ohm reference coil non-inductively wound from constantan on a 43mm ABS-supported bobbin with three 4mm sockets
sweat glands
the second universal-logic gate that complements the NAND for any digital-circuit construction
a 75mm-aperture convex glass mirror at 75mm focal length and ~2
Reading Magnifier, 60mm, 10cm Focal Length, Alternate Model Capacity_3000mL 5-ohm reference coil non-inductively woundDrops the focal length to 10cm on a 60mm aperture in alternate model framing, the shorter focus delivering more magnification at the cost of field of view.
US$ 129.00
US$ 39.95
US$ 19.95