This sensitive photometer uses a photoelectric cell as a sensor. The circuit was found in an American publication from the 60's. The transistors are germanium of the time.
Photometer (CB22324E)
- Details
- Written by: Newton C. Braga
This sensitive photometer uses a photoelectric cell as a sensor. The circuit was found in an American publication from the 60's. The transistors are germanium of the time.
