1-Ttube reflex receiver (T1555E)

This one-tube circuit is equivalent to the previous one. We find it in a 1924 book by Gernsback, Power is made by batteries.

AD Converter Circuit Test (CB16683E)
This circuit was found in Intersil's 1992 documentation consisting of a test for ADc0801 and...
Lamp control (CB21962E)
This 60's shield or driver employs germanium transistors. The circuit is from a 1960 Gernsback...
Transparent Octal Latch (CB15750E)
The circuit shown in the figure on the right can be used on a data transfer bus with the use of an...