Found in documentation from the 1980s, this highly sensitive circuit is based on the conduction by the presence of gas from an ionization chamber. The components are from the time.
Found elsewhere in this section, but from other sources, this circuit is from a 1964 Electronic...
This two-transistor circuit is from a December 1964 Radio Electronics. Modern transistors can be...
This receiver can tune in the 3 to 12 MHz band with good sensitivity and selectivity, using a good...