Balanced Line Driver (CB6223E)

This 600-ohm line driver was found in a 1980s documentation. The integrated circuit used is not common today.

Full-wave field strength meter (CB4115E)
This circuit has more sensitivity than the previous one (CB4114E) for using a full-wave detector...
Programmable Astable (CB13819E)
The frequency of this circuit can be programmed by a control voltage. The control circuit is CMOS...
Temperature compensatad 12 V regulator (CB8801E)
Found in Philips documentation from the 1970s, this circuit uses components from the era. The...