This low noise preamplifier has a gain of 19 dB in the 30 MHz band. The circuit is from the 80s. Transistors are from the era, and equivalents can be used. The circuit consumption is 13 mA.
This sophisticated audio generator based on the XR2206 IC was featured in the May 1980 issue of...
This circuit measures the modulation of a 11-meter transmitter, having been found in a 1989...
We have other similar setups on this site. This one is from September 1976 Radio Electronics. The...