Selector 1

# 1. System overview:

This document summarizes essential details for materials, setup, and operation. This is for transcription, archival, and research purposes only. It is based on an old patent and is not intended as a finished product.
Operating conditions described require specialized handling and safety precautions, and the descriptions outlined here do not constitute a recommendation or endorsement to build or operate the device. Attempts to replicate or build upon these models are entirely at your own risk.

**Source patent:**
- **Shoulders, Kenneth R.** _U.S. Patent No. 5,123,039_. Issued June 16, 1992.
- Image: Fig 26
- Text: **FROM** Column 26, line 39 **UNTIL** Column 28, line 31

## 1.1. Purpose

**Basic Function:**
Selector 1 is an example of a device capable of diverting the path of (a supposedly adjustable amount of) EVs by means of controlling the voltage of a tertiary electrode, here called the separator/extractor plate (248). Continuous or pulsed EV emission can