Broadband amplifier (CB9005E)

For a 75ohm output, this circuit was found in ancient American documentation, using components from the time.

High Pass Filter with Buffer (CB14337E)
The indicated circuit uses an unusual buffer from National Semiconductor. The frequency is given by...
Battery Charger (CB15963E)
This battery charger is suggested by National and has a switch that turns it off when the battery is...
Pre-Emphasis on 1500 Hz (CB13685E)
This circuit reinforces signals in a frequency range between 1500 and 2000 Hz for use in...