This variable gain circuit for analog video signals was found in a 90s Linear Technology documentation. The circuit has an adjustable gain between -12 and +8 dB.
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This simple alarm was found in a 1982 documentation, but uses components that are still common,...
In the figure we have the receiver of a sequential remote control operating at a frequency in the range of...
Although not using transformers, this amplifier may have difficulty mounting if the original...