This commercial receiver from the year 1958 uses two AA cells as Power supply. The circuit is intend to receive MW station and the transistors are germanium types not easy to find today.
This circuit is from an old manual of operational amplifiers. The setting can be adapted to work...
We find this circuit in the manual of the used integrated circuits. The manual is from Linear...
With this voltage regulator we can have currents up to 4 A at a 5 V output for TTL circuit power. The...