This circuit uses amplifiers from the 60's American company Microlin. The circuit can be designed based on modern operational amplifiers.
This amplifier is from a 1990s Linear Technology component manual. The circuit requires...
This circuit was found in a 90s RF Design. It is an oscillator that can reach 800 MHz, with the...
The transistors used in this crystal tester are general-purpose types. The circuit was found in...