The frequency of this Pierce oscillator, found in 1969 documentation, depends on the crystal. The current in the drain is about 500 uA. Crystals from other frequencies can be used.
In the figure we have the way to obtain an adjustable 1 to 10 mAconstant current source. The...
January 2017 – The bq35100 integrated circuit, a charge monitor and EOS for non-rechargeable...
We found this basic mixer with the 741 integrated circuit in a 1992 publication. The battery is...