Found in a Popular Electronics from the 90s, this amplifier uses an integrated circuit from the time. The circuit operates from the LF band up to 600 MHz with a gain of 16 dB.
This circuit causes an LED to flash at a frequency determined by capacitor C1. The circuit can be...
This flasher or neon signal powered by batteries was found in old documentation. The transformer must...
This circuit was obtained from an ancient American documentation, but appears elsewhere in this...