This circuit was found in a Philips documentation from 19678. The transistors are from the period with emphasis on the married pair. Modern equivalents can be used.
This circuit was found in Intersil's 1992 documentation consisting of a test for ADc0801 and...
This 60's shield or driver employs germanium transistors. The circuit is from a 1960 Gernsback...
The circuit shown in the figure on the right can be used on a data transfer bus with the use of an...