Found in National Semiconductor documentation, this logarithmic meter is powered with a voltage of only 1.5 V. Equivalent operational amplifiers can be tested.
This amplifier for effects on musical instruments can be mounted with BC549 transistors. The...
We found this circuit in documentation from National Semiconductor. For the medium wave range the...
According to what is said, the bugs are the female insects (mosquitoes, muriçocas and others)....