This is a Japanese commercial radio from the 60s. The superheterodyne circuit of 7 transistors for medium waves has 200mW of output when powered by 4 common batteries.
This circuit was found in old documentation and can be implemented with other operational...
This circuit was found in the December 1984 issue of Radio Electronics magazine. The circuit has a...
This Testa o Croce (name in Italian) was obtained from an Italian magazine in 1994. The circuit can...