CATV amplifier (CB9409E)

Found in a 1969 Electronics World, this circuit is intended for amplifying analog cable TV signals. The transistor supports a modern equivalent.

| Clique na imagem para ampliar |

Bass, Middle and Treble Control II (CB965E)
We found this circuit in a publication of 1990. With the changes it can be mounted easily today....
Operational Linear Photometer (CB13418E)
This simple photometer was found in a 1977 Radio Shack manual. The sensor is a photocell, which can...
TRIAC Test Using the Oscilloscope (MSB080E)
This circuit is used to test a triac and also to teach how it works. The load is an incandescent...