Wouldn`t be cool sitting at your favorite coffee shop with this phone on the table, and while chatting with your friends the Ericofon rings and it is a call for you Or picking it up, hearing a dial tone, cranking up the rotary dial and dialing home to say that you will be soon in your way Well, this is what this is about. This is an open source
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project on how to retrofit an extraordinary phone to make it a special, functional piece of conversation. Literally. The idea started when several months ago when I read about the Port-o-Rotary phone. The cool guys from SparkFun converted an ordinary rotary dial telephone into a telephone that can make cellular phone calls. My plan is to come up with a retrofit kit (open source) for a cool phone that is easy to carry, and adding some nice features to the original idea. And what better to show off the project than an Ericofon. After doing some research on the internet about where to get an Ericofon, I found this amazing site. I contacted the owner, Richard Rose and told him about what I was planning to do. He promptly sent me a very nice email explaining how tight it is in there and how quickly I will run into space problems. He also said:"You`re not the first to think of this, although I`ve never heard of anyone actually going through with the idea. I`ve been inside these phones for a while and I don`t see being able to maintain rotary dialing with the design you have in mind. "I emailed him back: "You just dared my inner engineer and geek! Game on!" Certainly, there are many places where you can get Ericofons, specially eBay. However, if you really want to get an excellent phone, probably NOS (new old stock), try first Richard`s website. His website has an amazing collection of these and other sort of classic telephones....
This project fits more for custom made battery casing that can have more space to hide things inside. This switch with few alterations can be used for any other project as well but is designed based on e-bike needs! This project use a clever functionality of....
The circuit described here uses ultrasonic oscillations and operates based on the propagation velocity of these oscillations in the air. Thus, we can easily determine the distance of two points if the time within which the wave travels this distance is....
Sometimes the precious metals are hidden too deep and are not detected except with complicated devices. In many cases, however, small pieces of precious metal buried near the surface can be detected by relatively simple means. Everyone is very attractive to....
Many times for various reasons we forget or can not water the plants that we have in our homes. And many humidity sensors units just notify us with a beeping sound or with a flashing light, that the pot needs watering. But what if we are away from home? This....
The principle behind a metal detector is really very simple. Proof of this is the circuit that follows, in which it proves that the construction of a metal detector can be done in the minute, with few components that we find very easily everywhere. With the....
The sub-harmonic bass generator is a sound producing unit for guitars. The sound it produces looks very much like that of the bass guitar. The octave generator is sometimes quite unusual since it does not produce any of the usual ways of coloring the sound,....
In the past the sounding (sea bottom measurement) was done with the "bullet", that is, with a heavy lead object that the seamen plucked into the sea hung from a calibrated rope. As soon as the "bullet" reached the bottom, the depth appeared directly from the....
This Amplifier was designed to have the following specifications: Distortion less than 0.1% at full power of 100W even at 20KHz. Power has to be attributed to an extended bandwidth. The output transistors must be protected against short circuits. The power....
A series of LEDs serve to alert the gardener when plants need water. Using two conventional digital integrated LEDs and a series of LEDs, we make a very useful device for gardening. The device detects the amount of water in the pot and alerts the grower.....
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