#strowger
Batteries were there to take the load until the geny kicked in.
No idea what it is now since strowger has finished (decades ago).
October 28, 2026 at 3:34 PM
Me when I realize I forgot to oil that one strowger switch
October 27, 2026 at 10:12 AM
Petty grudges, great inventions: the automatic telephone exchange was invented by an undertaker who suspected the operator of sending his customers to her husband, a rival undertaker.

In 1889 Almon Strowger simply got rid of operators.
October 21, 2026 at 3:40 PM
Probably this stuff. Strowger switches. They were largely phased out by the early 1980s, but there were plenty of places that just left them in if replacement was too costly.
October 6, 2026 at 6:41 PM
📌 Darknet Diaries Explores the Controversy and Legal Battles Surrounding National Security Letters https://www.cyberhub.blog/article/28437-darknet-diaries-explores-the-controversy-and-legal-battles-surrounding-national-security-letters
Darknet Diaries Explores the Controversy and Legal Battles Surrounding National Security Letters
This episode of Darknet Diaries explores the origins and implications of National Security Letters (NSLs), a powerful tool used by the FBI to gather information without a warrant. The story begins with a historical anecdote about Almon Strowger, an undertaker who invented the first automatic telephone switch in 1889 after discovering that a telephone operator was redirecting his business calls to her husband. This tale sets the stage for a discussion about trust, automation, and the unintended consequences of technological and legal innovations. The episode then shifts to the personal journey of Nick Merrill, a New York-based internet service provider (ISP) who received an NSL in the early 2000s, sparking a decade-long legal battle over privacy rights and government overreach. The first major topic is the history and purpose of NSLs. These letters are issued by the FBI under the authority of the Patriot Act, which was passed after the 9/11 attacks to combat terrorism. NSLs allow the FBI to demand sensitive information from companies, such as customer records, without a warrant or judicial oversight. The key argument presented is that NSLs bypass the Fourth Amendment’s protection against unreasonable searches and seizures, as they do not require probable cause or a judge’s approval. The episode explains that NSLs often come with a gag order, preventing recipients from disclosing that they received the letter, even to their lawyers or business partners. This secrecy makes it difficult for individuals or organizations to challenge the legality of the letters, as they cannot discuss them publicly. The practical implication is that NSLs can be used broadly and without transparency, raising concerns about government overreach and the erosion of civil liberties. The second topic delves into Nick Merrill’s personal experience with an NSL. In 2004, Merrill, who ran a small ISP called Calyx, received an NSL demanding information about one of his clients. The letter cited Executive Order 12333 and Title 18 U.S. Code Section 2709, which were amended under the Patriot Act to grant the FBI this authority. Merrill was shocked by the letter’s demands and the accompanying gag order, which he believed violated his First, Fourth, and Fifth Amendment rights. The First Amendment protects free speech, and the gag order suppressed his ability to discuss the letter. The Fourth Amendment requires warrants for searches, which the NSL bypassed. The Fifth Amendment ensures the right to legal counsel, but the gag order initially prevented Merrill from consulting a lawyer. Merrill’s story highlights the real-world impact of NSLs on individuals and businesses, as well as the legal and ethical dilemmas they create. His decision to challenge the NSL led to a landmark legal battle that would test the boundaries of government power and individual rights. The third topic focuses on the legal battle that ensued after Merrill received the NSL. With the help of the New York Civil Liberties Union (NYCLU) and later the American Civil Liberties Union (ACLU), Merrill filed a lawsuit challenging the constitutionality of NSLs. The case, initially filed under the pseudonym 'John Doe' due to the gag order, argued that NSLs violated the First, Fourth, and Fifth Amendments. The episode explains the legal process in accessible terms, including the concept of 'standing,' which requires a plaintiff to demonstrate a direct connection to the issue being litigated. Merrill’s case went through multiple rounds of appeals, with the government repeatedly attempting to dismiss it or delay proceedings. The legal battle also involved other plaintiffs, such as a group of librarians who received NSLs, and later, cases brought by the Electronic Frontier Foundation (EFF) on behalf of companies like CREDO Mobile and Cloudflare. The practical implications of these legal challenges are significant, as they forced the government to amend the NSL statute to include some safeguards, such as limiting the duration of gag orders and allowing recipients to consult lawyers. However, the episode also highlights the ongoing concerns about the use of NSLs and the potential for abuse. The final topic explores the broader implications of NSLs and the legal battles surrounding them. The episode features an interview with Cindy Cohn, the executive director of the EFF, who discusses the organization’s efforts to challenge NSLs in court. Cohn explains that the FBI issued hundreds of thousands of NSLs between 2001 and 2005, but only a small fraction of those cases resulted in terrorism prosecutions. This discrepancy raises questions about whether NSLs are being used appropriately or if they are being abused for broader surveillance purposes. The episode also discusses the role of secrecy in enabling government overreach, as the gag orders prevent public scrutiny and accountability. The practical applications of this discussion include the importance of legal challenges in holding the government accountable and the need for ongoing vigilance to protect civil liberties in the digital age. The episode concludes by emphasizing the significance of Merrill’s and others’ efforts to bring the issue of NSLs into the public eye, despite the risks and challenges involved.
www.cyberhub.blog
September 28, 2026 at 6:07 PM
☎️ Od trumny do trunku - Strowger, Asterisk i telefonia po godzinach

Krzysztof Strug ze stowarzyszenia Krótkofalowcy 2.0 (@sp9fld), prześledzi drogę od automatycznej centrali Strowgera do współczesnego #voip oraz pokaże w praktyce konfiguracje #Asterisk i […]

[Original post on fosstodon.org]
September 28, 2026 at 1:03 PM
Arsenal birthdays for 27th September:
1920 - Les Strowger (1946 no photo)
1927 - Ernie Stanley (1945 - 1951)
1930 - Terry Davies (1950 - 1952 no photo)
1945 - John Hoslgrove (1961 - 1962)
1966 - Siggi Jonsson (1989 - 1992)
1986 - Chris Wright (2001 - 2005)
September 27, 2026 at 7:51 AM
Paid up THG members will shortly be receiving the THG Journal
This issue includes a visit to the NTT Museum in Tokyo, articles on howlers and saving red phone boxes along with much more!
You can join the THG at membermojo.co.uk/thg

#Heritage #telecoms #redphonebox #strowger
September 1, 2026 at 9:58 PM
was very proud to sponsor @hope.net and had a great time running our booth over the weekend! Also particularly enjoyed the atproto-adjacent talks from @phill.hallambaker.com (schedule.hope.net/hope26/talk/...) and @permadeath.com 😎
To Kill the Telephone System’s Ghost HOPE 26
The telephone system hasn’t existed for decades, but its ghost lives on. We still use telephone numbers, but the Strowger exchanges built with 1890s technology of relays went long ago and so have most...
schedule.hope.net
August 17, 2026 at 6:42 PM
Switchboard operators, mostly women, provided a service, not just calls.

Undertaker Almon Brown Strowger invented automatic switchboard after his competitor's wife began routing all calls to her husband.

His invention used pulses, dial tones… like haptic & audio feedback blind operators relied on.
The Suspicious Undertaker Who Caused 200,000 Women to Lose their Jobs - Destination Innovation
He suspected that his undertaking business was losing clients to a competitor whose wife worked as a telephone operator.  Strowger believed that she was redirecting calls for his business to that of h...
www.destination-innovation.com
August 13, 2026 at 10:14 AM
When I was little, my mom worked doing data entry for the University.

The had a Strowger telephone exchange in the next room, working with electromagnets - I still remember the sound as someone dialed a number and it connected. 🤷

I'm guessing it was decades old at that point (70s). 🤷
February 11, 2026 at 12:06 PM
Strowger-riffic!
July 14, 2026 at 10:31 PM
Early 1970’s Strowger BT telephone exchange maintenance when work was fun, Eldon House, Sheffield, South Yorkshire, UK, me 🙂
April 19, 2025 at 9:50 AM
Enjoyed working on every thing Strowger. Should have borrowed a few when I swapped jobs, I worked the trunk auto not the local so got to play with registers and translators as well. at the end before I left, there were racks of them, de powered as the traffic was shifted to new tech.
September 23, 2025 at 1:20 PM
Electronic? It was all getting computerised when I shifted to broadcast. UK was system X (no idea now). Though there were electronic exchanges but my training was strowger. Fault finding was fun when acres of diagrams spread out to chase a broken wire.
September 23, 2025 at 8:57 AM
#Alphabetchallenge #WeekMforMemories
When you go to a museum and see the kit you used to repair on display. And muscle memory kicks in on how to remove and actions to test and repair. Still have the tools as well.
#strowger #TelephoneExchange
More in alt text.
September 23, 2025 at 5:33 AM
the Strowger switch for automatic telephone switching was invented in 1891, and that was electromechanical. the electrical or electronic properties of the system were almost unimportant, except to ensure the relays could operator at all. the complexity was from mechanics
June 19, 2025 at 5:16 PM
In the days of Strowger mechanical exchanges, where each digit was a series of pulses that moved a rotary relay around, zero was actually 10 clicks (hence it comes after 9 on rotary dials). Makes sense to put it after 9 on phone keypads to keep that order.
January 7, 2026 at 1:43 AM
OK so I used to live like a block away from the building he put up with the meager profit he made from his invention, and he was a legendary redass to his dying day (though, if it's true he was really swindled, he had reason to be)
April 5, 2026 at 5:50 PM
Hey! Come check out Retro Repair Roundup tonight while we talk with the folks from ShadyTel. Analog phones, Strowger Switches and dodgy invoices: tonight at 8e/7c/6m/5p!
ShadyTel - Retro Repair Roundup Episode 86
Join the RRR crew as we interview the best little telco in VCF history - ShadyTel!
www.youtube.com
October 19, 2025 at 11:45 PM
Yes, it's a Strowger advert, not a rediffusion advert.

en.wikipedia.org/wiki/Strowge...
Strowger switch - Wikipedia
en.wikipedia.org
February 19, 2026 at 9:57 AM
.... looks like part of a Strowger SXS switch...
September 13, 2025 at 11:13 PM
100 years ago: an explanation of how newfangled dial telephones will work, replacing the operator.

"it is impossible to connect with the wrong number - any mistake will be the fault of the subscriber"

Many telephone operators would lose their jobs of course...that's progress.
May 9, 2026 at 3:12 PM
that’s fair.
Personally, I don’t know how those advancements felt at the time for the people whose jobs were being displaced, nor can I anticipate if this will also result in many new types of jobs.

this reminds me of this episode of 99% invisible

99percentinvisible.org/episode/stro...
Strowger Switch + Purple Reign Redux - 99% Invisible
If you are an undertaker in 1878 Kansas City, and you learn that your competitor’s wife works as a telephone switchboard operator and has been diverting business calls meant for you to her husband, yo...
99percentinvisible.org
June 5, 2025 at 7:30 AM