Suggested for the control of photographic enlargers, this 1967 General Electric circuit uses still common components. The circuit directly controls a lamp for exposing negatives.
This circuit was found in a 90s American documentation from the 90s. The components are from that...
The AT21CS11 memory device offers an extended voltage range to accommodate lithium-ion battery...
The previous oscillators that use gatesshown in this section, and the 4093 in the basic version,...