1,5V Thermometer (CB21280E)

We found this circuit in old documentation from National Semiconductor. The circuit makes use of a sensor from the time.

UHF Field Strength Meter (CB6537E)
For the 400 to 500 MHz bands, this circuitry found in an 80's documentation uses a very critical...
Sampling and Holding Circuit (CB17596E)
This circuit is used in analog-to-digital converters based on a voltage that is sampled and is...
12V Battery Charger II (CB19200E)
This charger was found in an old Motorola manual using an SCR from this company, which, however, can...