AD converter with LCD display (CB9025E)

This circuit was obtained in Teledyne documentation from the 70s. The converter component is uncommon today.

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12 V power supply with 250 mA (CB8499E)
Found in Philips' 90s documentation, this small source can use modern transistors like the BD135...
Delayed Alarm Trigger (CB4775E)
This circuit is designed to activate an automotive alarm after 8 minutes of activation. Of course...
Z04 4 A Triac (COM021E)
June 2016 - It can be purchased from Mouser Electronics the new triacs Z04 for 4 A from...