Linear Parallel to Serial Conversion

The system accepts up to 21 simultaneous pulses in parallel and forms a train of pulses for the display on a single channel scope. Representative pulses have the following characteristics: ~15 nsec wide at the base line, ~5 nsec rise time, ~1 ma peak current. Each channel contains a linear gate, controlled by the same event pulse. Upon arrival of the event pulse, the 21 channels open simultaneously for ~25 nsec and allow transmission of the signal pulses into a system of 20 cable delay sections, connected in series. Each joint is a feedpoint for one signal pulse as passed by its corresponding linear gate. The 21 roughly simultaneously occurring pulses can now be displayed as a train of pulses on a single channel scope. Circuit design and performance data are given in the report.