This 10 kHz filter was obtained from an article in Electronics Now magazine in February 1995. The power supply is dual and other equivalent operating conditions can be used.
This timer of 10, 25, 45 seconds and 5 minutes has its times selected by the keys. The circuit drives...
This 80's circuit uses an integrated amplifier of the era, but nothing prevents it from being...
We found this Vox in a 1969 Motorola documentation. Transistors support modern equivalents and the SCR can...