Found in an article in the August 1971 Radio Electronics magazine, this circuit supports 106 series SCRs and general-purpose transistors such as the BC.
This circuit was obtained from the November 1989 issue of Radio Electronics magazine. The circuit is...
This simple digital frequency meter using CMOS circuits reaches 5 MHz frequency. Input signals are...
We found this circuit in the 1960 Mullard transistor manual. The transistor is made of germanium....