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 circuit was found in an American 1980s documentation. PUTs are rare today. Capacitors C1 and C2 are...
The circuit is from an old American publication. We can mount it with the BC548 and TIP31. The...
This circuit for light modulated in frequency (FM) operating at 50 kHz was found in a 90’s...