This tachometer and dwell meter for old cars was found in a 1975 documentation. The circuit is a reference for those who want to recover or maintain an old car.
This circuit is from an English magazine of 1974, but can still be assembled with the replacement of...
This circuit, using a unijunction transistor (UJT), converts a voltage applied to the input in a...
This circuit was found in documentation from the 80s. The circuit did not include resistors from...