Rotary input switches

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Early Type 1A1 and W and Type 82 plug-ins have a rotary input coupling switch that is concentric with the BNC input connector. The Tek part number is #260-603. Minor oxidation of the contacts can be cleaned using a regular contact cleaner spray. This switch can be disassembled for further cleaning/repair. See repair page for disassembly instructions.

Pictures

  • 1A1 Rotary input switch

  • Front

  • Rear

  • Internals

  • Internal - Contacts

  • Internals

  • Schematic

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