Product Detail

RESISTANCE BOX PLUG TYPE

In seasoned, polished wooden case. Milled head plugs, accurately tapered, are interchangeable. Grooved bakelite 
tops of the plugs give a firm grip. Metal blocks are undercut and are fitted to thick, high insulation plates. Manganin coils, are well-seasoned, non-inductively wound, and accurately calibrated. Accuracy ±0.5% for 0.01 to 0.05 ohm coils, ±1% for B grade.
Interchangeable taper plugs and brass metal blocks. Using constantan wire resistances. Fitted in a nicely polished wooden box.
Using constantan wire resistances.Fitted in a nicely polished wooden box.