Since using all my early life dial phones but never actually studied how do they work .. now it is the time. In this article I open a LM Ericsson rotary telephone and figure out how it works and how does the automatic central connect the caller to called.
 |
| A dial phone opened with its basic parts visible: base plat, PCB (Printed Circuit Board), ringer, dial plate, cover, handset with microphone and receiver capsules in it, plug and cables. |
Posts
