In this circuit, which uses only diodes, we have both simultaneous functions. The diodes are general-purpose types and the resistors have typical values of 2k2.
This source was found in Philips' 60s documentation. The transistors are from the era and the...
This circuit is the digital indicator for the previous circuit and can be used with similar...
Found in a 90s Electronic Design, this circuit operates with Maxim components of the time. The...