Found in 1948 MIT documentation, this 4-tube amplifier is characterized by its low noise level.
This circuit was obtained in an old English magazine (TSI) 1998 and consists of a Schmitt trigger...
ST Microelectronics STSPIN32F060x Three Phase 600V Controller This STMicroelectronics component...
This circuit uses a 6-bit A / D converter from Philips, and has its output compatible with most...