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| Resistance Boxes Plug Type |
| In plug type resistance box the contact between plug and socket is the most important
feature affecting
reproducibility of results. We use tapered brass plug and split block. This is the best form of contact
but is
expensive to make. Since it requires accurate machining to ensure interchangeability (i.e. plugs and lugs
are
cut to a fine taper and are interchangeable). The plug heads are machine moulded of heavy insulated
bakelite in beautiful
shape. Selected double cover Eureka or Manganin wire is wound on the bakelite spool.
Sufficient heat treatment is
processed through to avoid any appreciable shifting of values. The coils are
mounted lower side to an insulating panel
with the help of threaded brass leads and connected across the
gap between the heavy brass blocks which are mounted on the
panel. The top panel is provided with two
heavy type brass terminals. The coils are clearly marked on the panel. The case
is of teak wood. |
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Specification |
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Enquiry |
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