In fact, this 1967 Electronic Design circuit generates two symmetrical ramps whose frequency depends on the values of the components used. Modern equivalent transistors can be used.
This converter was found in the June 1991 issue of Radio Electronics magazine. The circuit uses...
This simple field strength meter was found in a 1970 publication. The zero-adjustment...
Found in Philips' 1968 documentation, this circuit serves as a 6.3 V reference for high stability. |...