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.
This circuit is from the Linear Circuits Application of Texas Instruments, using an operational amplifier...
This PNP transistor power stage was found in the May 1969 issue of Radio Electronics magazine. The circuit...
This circuit is from an old American publication from 1970, but it can be assembled with a BF494...