This circuit uses two diodes in a doubling configuration to receive medium-wave range signals. The phone is crystal. We found it in a 1968 American documentation.
November 2016 - NXP ARM Cortex microcontrollers for serial interfacing applications, NXP 32-bit...
This simple earphone receiver was sold in the 1960s in Japan. The circuit uses a single germanium...
Rumble is a low frequency rumble that occurs with turntables. If the reader recovers recordings on...