Found in American documentation from the 90s, this circuit keeps the high beam on for a time determined by the trimpot adjustment. The relay is sensitive 12 V.
This circuit was found in a 70s American documentation. The operational amplifier supports a modern...
This limit alarm was found in a 1980s US documentation. Comparators can be equivalent and the...
This VHF receptor was found in a Japanese publication from the 1960s. The original transistors can be...