This an old commercial receiver found in a year 1958 magazine. The circuit uses some transformer available that timer and the transistors are germanium types. The circuit is intended to receive MW stations.
In the figure we have a way to obtain a 15 V symmetrical source with a 30 V single winding...
August 2017 - STMicroelectronics' BlueCoin development environment is available at Mouser...
November 2016 - Mouser Electronics has in stock the Toshiba Bluetooth TC35670 and 35675...