Standard 1 MHz Oscillator (CB9653E)

We found this circuit in an old American documentation. Transistors can be modern equivalents.

Remote ear (CB20528E)
This remote listening device was found in documentation from the 50's. The transistors used are...
AD Converter for Current Monitor (CB5246E)
Found in a 2005 Linear Technology application manual, this circuit provides outputs from a current...
555 Pulse Generator (CB25505E)
Found in the September 1992 issue of Radio Electronics magazine. This circuit generates pulses that...