Inverter and programmable rectifier (CB8781E)

Found in a 90s Maxim's documentation, this circuit applies to almost any comparator.

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Low Frequency Converter 4538 (CB25388E)
This converter was found in the June 1991 issue of Radio Electronics magazine. The circuit uses...
Field Strength Meter with FET (CB12498E)
This simple field strength meter was found in a 1970 publication. The zero-adjustment...
Pre-stabilization circuit (CB8802E)
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