This 1967 modeling circuit mimics the whistle of a locomotive. The steam-shrieking wheezing is set in a 2k2 potentiometer.
This continuous wave transmitter (CW) can send signals in the 30 to 100 MHz band, depending on the...
August 2017 - The new LZ400UB00 ultraviolet LEDs from Engin LEDs with wavelengths of 385 -410 nm...
Although indicated in the original publication of the 1980s as a capacitance switch, the circuit...