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3 April 2025

2 April 2025

1 April 2025

  • 14:5314:53, 1 April 2025 1A Teletype Test Set (hist | edit) [656 bytes] Intcreator (talk | contribs) (Created page with "{{About|the test set in general|specific test set in the Connections Museum|CMS:1A Teletype Test Set}} The '''1A Teletype Test Set''' is a character generator and strobe measuring set. It is motor driven, and can generate and transmit common test characters like R and Y as well as test messages from code discs. It uses a flashing neon lamp to illuminate the outside edge of the large spinning wheel on the front. The neon lamp flashes whenever the test set receives a “m...") Tag: Visual edit: Switched

31 March 2025

28 March 2025

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  • 19:3519:35, 24 March 2025 Local Automatic Message Accounting (hist | edit) [3,235 bytes] Sarah (talk | contribs) (Created page with "'''Local Automatic Message Accounting (LAMA)''' is a method of billing for long distance calls where the billing records are created and stored at the same central office that the call originated from. This is in contrast to CAMA, where the call records are sent elsewhere for storage. LAMA was first introduced in a step by step office Los Angeles in the 1941. LAMA was then re-introduced in an improved form with the No. 5 Cros...") Tag: Visual edit

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17 February 2025

  • 21:4521:45, 17 February 2025 Ringing machine (hist | edit) [4,695 bytes] Sarah (talk | contribs) (Created page with "A '''ringing machine''' is a motor generator set that was used by telephone companies to create the current needed to ring the bells in subscriber's telephones (referred to as ''machine ringing''), and to create the call progress tones that a subscriber might hear while making a call. These sounds usually include dial tone, ringback tone (known as ''audible ringing'') or busy tone. == Origins == The origins of the ringing machine date back to hand cranked magnetos used...") Tag: Visual edit

16 February 2025

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11 February 2025

  • 17:4617:46, 11 February 2025 Western Electric Model 6-B (hist | edit) [2,635 bytes] Intcreator (talk | contribs) (Created page with "{{About|the transmitter in general|specific transmitter in the Connections Museum Seattle|CMS:KRKO Broadcast Transmitter}} The '''Model 6-B''' is a 1 kilowatt radio transmitter that was manufactured by Western Electric starting in 1928. It consists of an oscillator unit and an amplifier unit. The 6-B is capable of operating from 500-1,500 kHz with wavelengths from 200 to 600 meters. It can run on three-phase 50-60 Hz AC at 220 V or DC at 1...") Tag: Visual edit

5 February 2025

28 January 2025

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