This circuit was found in Ferranti's 1974 transistor manual. The transistors are from the period and the frequencies generated are between 50 Hz and 2 kHz.
Suggested by Philips in a 1970 publication, this circuit uses components from that time. No...
This circuit was obtained in a 1979 magazine, but it can be easily assembled today, as the...
This sixty Japanese commercial radio used 6 transistors in a superheterodyne configuration for...