Sencore-news-1971 08 – Manual (PDF)

Erik from ManualsPlus — Fri, 26 Dec 2025 10:09:24 +0000

The Sencore News manual from August 1971 covers the setup, operation, and troubleshooting of tube testers, specifically focusing on the Auto-Tracker and Mighty Mite models. It details the importance of accurate tracking tests for color CRTs, explains the simplified operation of the CR161 for testing picture tubes, and highlights improvements such as numbered CRT sockets and filament voltage settings.

Brand: Sencore-news-1971
Model: 08
Type: manual
File size: 3.7 MB

Manual Overview

The August 1971 issue of Sencore News focuses on advancements in CRT and tube testing, emphasizing the importance of accurate diagnostics and efficient troubleshooting. The CR161 Auto-Tracker is highlighted for its ability to perform comprehensive tracking tests on picture tubes, crucial for identifying defects and ensuring proper color balance in CRTs. The manual details the procedure for conducting a tracking test, which involves setting the correct socket and filament voltage, adjusting G2 voltage for each gun, and measuring cathode current to ensure it meets manufacturer specifications. The Mighty Mite tester is noted for its expanded tube testing capabilities, including full load cathode current checks and grid leakage sensitivity, which are essential for precise diagnostics. The publication stresses the significance of these tests in preventing costly warranty returns and ensuring optimal performance of electronic equipment.

Quick Issues Covered

Diagnose CRT tracking issues with the CR161 AutoTracker.
Identify shorts using Mighty Mite's stethoscopic shorts test.
Trace circuits with detailed schematic for Magnavox T-940 chassis.

Overview

The document provides information about the Auto-Tracker and Mighty Mite products. The Auto-Tracker is a pushbutton automatic tracking test device that tests all picture tubes, including imports, with simplified operation and improved CRT sockets. The Mighty Mite tests more tubes than before, offers a full load cathode current check, and features a stethoscopic shorts test. Both products are designed to improve the accuracy and efficiency of electronic servicing and maintenance, with no price increase from previous models.