Chapter 4 Birth of Setsuden-mushi (a profitmaking device) 4.1.1.2 One hour in the latter half of the two hours from 4:00 am (2)
Next, I modified this external bell (hereinafter referred to as Development Unit No. 1) to turn on / off the power of other electric appliances in conjunction with turning on / off the phone.
The purposes of this modification were as follows.
(1) When a call comes in, Development Unit No. 1 turns on the power of another electrical product,
(2) When making a phone call, the development unit No. 1 also turns on the power of another electric product in the same way.
(3) While the telephone line is in use, during the telephone call, Development Unit No. 1 keeps another electrical product powered on.
(4) When the telephone line is no longer used, Development Unit No. 1 turns off the power of another electric appliance.
Then next, I connected a miniature bulb to Development Unit No. 1 and confirmed many times that the telephone on / off and the blinking of the miniature bulb were linked.
Then, it was around 6 am that I connected an actual fax machine instead of a miniature bulb and finally finished the telephone / power supply interlocking experiment by fax. After entering the office, a series of observation of the external telephone bell, movement check of the electrical parts, experiments using a miniature bulb and a fax machine was completed in about 2 hours.
The basics of development were completed in only about two hours. Moreover, Development Unit No. 1 was a diversion of the external telephone bell that was given free of charge.
When I noticed, it was time for the people to go to work early in the morning on National Road 184 in front of the office.
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