Search found 1 match
Search found 1 match • Page 1 of 1
- Mon Sep 01, 2003 11:39 am
- Forum: General Discussion
- Topic: photo - electronics project
- Replies: 1
- Views: 880
I am getting back into b&w photography in the april 1974 issue or popular electronics , there was an article by Joseph giannelli " auto photo enlarger controller" using a FET and a '555 and a photo resistor, it controls a photo enblarger to give automatic exposure. I built one back then and i believ...