This variable frequency oscillator for radio transmission covers the range from 1.6 MHz to 20 MHz, depending only on the coil used. The circuit is very stable and can be used in amateur equipment.
This 100-second timer was found in a 2000 Poptronics. The magazine no longer exists, but the...
The 3-digit AD converter on this circuit is not very common today. It uses 2 integrated circuits to...
We found this circuit in the National Semiconductor FET manual. The components are calculated...