This amplifier for playback of recordings was found in a 1947 manual. It uses a push-pull output with a tube power supply.
This circuit has more sensitivity than the previous one (CB4114E) for using a full-wave detector...
The frequency of this circuit can be programmed by a control voltage. The control circuit is CMOS...
Found in Philips documentation from the 1970s, this circuit uses components from the era. The...