Low noise mixer (CB7984E)

This mixer was found in Silicon Chip documentation from the 90's. The circuit uses integrated circuits from that time.

5 V x 5Aconverter (CB9333E)
This step-down converter with 10 to 60 V input produces a 5 V output with a maximum current of 5...
Common base transformer stage (CB22223E)
Found in an old American documentation, this step has as input and output transformers coupling. Two...
MW Wireless Microphone (CB4385E)
This circuit was found in a 1963 magazine, but can still be easily assembled with some current...