Found in a 90s R-E Experimenters Handbook, this circuit amplifies signals from 100 Hz to 3 MHz. The circuit has a gain of approximately 30 dB. Bipolar transistors are general-purpose types.
This circuit has a sensitivity of 2uW. We found it in documentation from the 1980s. The integrated...
The inverter circuit shown in the figure can be used to power a fluorescent lamp in an emergency...
In the figure we have an audio amplifier suitable for portable applications in both mono and...