LM1201 Video Amplifier (CB21317E)

This circuit was found in National Semiconductor documentation from the 1990s. The circuit has a 75 ohm output.

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Filter analyzer (CB8227E)
Found in a 90s Popular Electronics, this circuit is interspersed between the filter and the...
RIAA Equalization Amplifier (CB4952E)
This circuit is from an 80's documentation. The integrated circuit is from the time and the...
Undervoltage indicator (CB9580E)
This circuit was found in a 80s American documentation. The zener diodes determine the points of...