This 1967 modeling circuit mimics the whistle of a locomotive. The steam-shrieking wheezing is set in a 2k2 potentiometer.
August 2016 - It can be obtained from Mouser Electronics the new clock buffers HMC7043 of Analog...
This circuit appears elsewhere in this section, but taken from other sources. This is an English...
The integrated circuit used in this 80's temperature control is not very common today. The load...