We found this circuit in an old American documentation. SCRs can be modern equivalent types. The transformer has a 5 A current, according to the SCRs.
This new AMS device consists of a digital color sensor and proximity sensor that also incorporates an infrared...
This amplifier produces a few hundred milliwatts of Input 100 pF audio over a load of 4 or 8 ohms...
This transmitter for modulated infrared remote control was found in documentation from the 90s....