Fix Old Cameras: Diode Modification Clarification

This video covers the diode modification of a classic film camera's meter system that was originally designed to work on the discontinued mercury cell batteries. A voltage dropping diode is installed in line with the battery circuit so that modern batteries can be effectively employed. This video does not include the why of diode behavior. It does, however briefly, cover the how of diode behavior as it applies to vintage camera repair. classic camera repair - http://www.phototronic.biz A few tools and books - https://www.amazon.com/shop/fixoldcameras