Resistance Box convex lenses examples With diopter and eye guard

With diopter and eye guard ZOOM RATIO: 1:4

Impedance: greater than 16 Ohms

ensuring they meet the highest standards required in laboratories

40HQ: 1355 cartons * 50 pcs = 67750 pcs

Lower limit thickness of magnetic metal substrate: 0

Resistance Box convex lenses examples With diopter and eye guardThe Resistance Box Plug (110,000 Ohms) is a precision instrument designed for accurate resistance selection in electrical and physics experiments. Built using high quality manganin coils, it ensures stable resistance values with minimal variation due to temperature changes. This resistance box features a plug type system, allowing users to easily insert or remove plugs to achieve the desired resistance value. The use of durable brass blocks ensures