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 circuit was found in a 1960 transistor manual from Sylvania. It measures the intensity of...
I found this circuit in an old Argentine publication from 1973. The components are no longer...
Found in Ferranti's 1969 documentation, this circuit can be mounted with a modern equivalent...