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.

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Limit Comparator (CB5086E)
This circuit appears elsewhere on the site. The circuit shown is from an American 1980s...
Loudness Control (CB872E)
This circuit changes an audio signal to get better reproduction. It is important when editing...
DC DC Converter 18 V x 5 A (CB1232E)
The circuit shown is a Step-Down converter that can provide a 5 A output with 4 to 18 V inputs. The...