This amplifier with the LM1098 and LM101 by Motorola from a 1990 manual can be designed with more modern operations. The bandpass for small signals is 3.5 MHz and the power range is 250 kHz.
This counterphase circuit is from a 1973 publication, and can work with mains voltages or 12 V....
This simple transistor tester was found in a Japanese magazine in 1967. It tests general purpose...
This basic 100 kHz oscillator is suitable for use in calibration. We found it in documentation from the...