This circuit is from a manual from the 80's and the operational one used, uncommon nowadays, can be replaced by a modern equivalent. The power supply must be symmetrical.
This circuit is from the Linear Applications Handbook of the National Semiconductor of 1994. The...
We found this circuit in the National Semiconductor Linear Applications Handbook of 1994. The...
This Japanese commercial medium and short-wave radio uses 7 transistors and tunes the range from...