01 / Story

The scene

Corporate timelines can make brand mergers look tidy. A customer’s laboratory inventory tells a messier and more authentic story. Korea Testing & Research Institute lists instruments associated with Robinson and TETTEX in its electrical testing environment. The names are still visible because laboratories purchase, maintain and identify working instruments by the labels that were meaningful when equipment entered service.

02 / Story

The engineering challenge

Among the listed systems are a Robinson DDX 7000 partial-discharge instrument and a TETTEX 2840 dielectric-loss measuring instrument, as well as other equipment. Their functions are different: one is concerned with discharges in insulation, the other with dielectric-loss characteristics. Together they show why the historical convergence of measurement brands matters in practice rather than only in marketing charts.

03 / Story

Why it matters

KTR’s inventory does not provide every commissioning date or original commercial contract. It also does not make each legacy Robinson or TETTEX instrument a machine originally manufactured under the present HAEFELY legal entity. This is a carefully limited but useful picture of technical heritage surviving inside a modern Asian testing laboratory.

Evidence / What the documents actually establish

Sources, scope and limits.

KTR customer equipment list identifies Robinson and TETTEX instruments, without full original supply contracts.

  1. Korea Testing & Research Institute official cable testing equipment inventory (Robinson and Tettex)S-F1-011 · corporate_publication · customer_government_lab_webpage
  2. KTR Korean-language matching instrument inventoryS-F1-012 · corporate_publication · same_operator_second_language
  3. Korean Test & Research Institute listing Haefely impulse measuring equipment DiAS 733 / GC223S-154 · third_party_analysis · institutional_lab_inventory_verified

Visual quotations document individual historical points with named sources and creators; they are not a general image-library licence. Equipment claims are intentionally narrower than the surrounding institution’s activities.