Uploaded March 2024 | Updated September 2026, 2 weeks ago
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Today's mystery object is a mid-century medical instrument used for performing a procedure sharing its name with a classic comedy film. Think you know what it is? Sound off in the comments with your guess, and I will reveal the correct answer in tomorrow's follow-up video.
Like what I make? Want fewer sponsorship ad reads? Consider contributing to my Patreon at patreon.com/OurOwnDevices
Today's mystery object is a mid-century medical instrument used for performing a procedure sharing its name with a classic comedy film. Think you know what it is? Sound off in the comments with your guess, and I will reveal the correct answer in tomorrow's follow-up video.
![Ford Model T Ignition Coil: a Spark of Genius
[ERRATUM: I accidentally misspoke and stated that the D in DELCO stood for DETROIT rather than DAYTON]
Early Ford vehicles from the Model A (1903) through the Model T (1908-1927) used an electrical ignition system based on trembler coils, high-voltage, high-frequency transformers adapted from the classic induction or Ruhmkorff coil. But while effective, this system struggled to achieve accurate ignition timing and was eventually replaced by the more reliable DELCO ignition coil system.
Medical Coils video: https://youtu.be/NufNhuWI1iA
Pocket Battery No.1 video: https://youtu.be/RCANKMhbGjw
0:00 Introduction
0:46 Non-Electrical Ignition
1:55 Ford Make-and-Break System
3:22 Trembler Coil Overview
4:11 Induction Coil Theory
7:17 Commutator/Distributor
7:52 Trembler Coil Box
8:24 Electrical System Evolution
9:57 Trembler Coil Shortcomings
11:07 Master-Slave Coil Systems
11:28 Joseph Williams Improvements
12:36 DELCO Ignition System
14:27 Other Ignition System
15:28 Ford Trembler Coil Evolution
19:15 Outro
SOURCES
http://www.aeroelectric.com/Reference_Docs/Books/Model_T_Ignition_System.pdf
https://www.history.com/this-day-in-history/august-29/charles-f-kettering-inventor-of-electric-self-starter-is-born
https://www.denso-am.eu/news/deneur21_04_ignition-coil-basic-principles
https://www.hotrod.com/how-to/inductive-vs-capacitive-discharge-ignition-systems#google_vignette
https://www.curbsideclassic.com/automotive-histories/automotive-history-the-history-of-electronic-ignition-losing-the-points-part-1/
https://patents.google.com/patent/US1223180A/en
https://www.modeltcentral.com/Model-T-Ford-Electrical-Specifications.html
https://www.larescorp.com/toolbox/skinned-knuckles-articles/the-model-t-ford-buzz-coil/
https://www.larescorp.com/toolbox/skinned-knuckles-articles/the-model-t-ford-buzz-coil/ Ford Model T Ignition Coil: a Spark of Genius](https://i.ytimg.com/vi/2FeTWTs5l0Y/mqdefault.jpg)









