Digital Voltage Control (CB6590E)

Found in old Philips documentation, this circuit uses components from the 60's.

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Remote Control Tester (CB18007E)
This circuit was found in a 2003 documentation. Its purpose is to check if the transmitter of an...
Absorption Wattmeter (CB22023E)
Found in old English documentation this circuit evaluates the power of a transmitter. The circuit has...
Sample and Hold LM3900 (CB14218E)
The circuit shown is suggested by National Semiconductor's Linear Applications Handbook. The base...