Stereo preamplifier TDA3410 (CB21937E)

Taken from the 1982 SGS manual on integrated circuits, this preamplifier was used in commercial equipment at the time.

18 to 60 MHz Crystal Oscillator (CB13872E)
We obtained this oscillator in a publication for radio amateurs in 1978. The circuit operates on...
Binary Indicator (CB6700E) This circuit was obtained from old documentation but can be used as a shield in a modern application. The SCR can be 106 series and a general-purpose transistor. a href="images/sto"
Binary Indicator (CB6700E) This circuit was obtained from old documentation but can be used as a...
Low Frequency Amplifier LM339 (CB19796E)
The LM339 is a voltage comparator, but it can be used as a low frequency amplifier, as shown in...