This excellent tube preamplifier was found in Radio Electronics magazine from July 1958. The power supply was not included. The circuit has several inputs.
The two power steps below are intended for use with the SAA1027 stepper motor control but can be...
August 2017 - Mouser Electronics is announcing the availability of TDK ICS-52000 microphones with...
What this interesting circuit does is to warn that a note written on a paper has been removed and...