This circuit was found in the 1992 Radio Electronics Handbook. It is used to test VCR recording heads. It can also be used for other purposes.
Found in a 90s Practical Wireless, this circuit provides 8 to 10 W of output with a gain of 14 dB....
This circuit is from a Maxim manual and can be used to power shields from batteries. The circuit...
In the figure below we have the connections of an automotive alternator in a triangle. The diodes...