This nice analog indicator circuit was found in the January 1974 issue of Radio Electronics magazine. The circuit has 8 scales with individual adjustments. The instrument is rated at 50 uA.
Found in old English documentation, this circuit simulates a diac and can be used to trigger...
This circuit was obtained from a Radio Electronics from October 1963. The 4 transistors must be...
This didactic circuit was found in a 2001 documentation. It presents the result of programming in binary...