This audio level indicator was found in October 1980 Radio Electronics magazine. See the table with the dB values of the indicated signals.
This circuit is suggested by Motorola and makes use of a phototransistor with its own...
Found in a 90s Linear Technology documentation, this circuit supplies current to a load through a...
August 2016 - It can be obtained from Mouser Electronics the new clock buffers HMC7043 of Analog...