Leader LBO-517 Oscilloscope 50 MHz Vintage Powers On - Untested- For Parts

Oscilloscope Bell & Howell Schools Model IOD-4540 WORKS TESTED

Devry Bell & Howell Schools Model 34 Oscilloscope Analyzer Powers Up

Kikusui Model 539 Oscilloscope Powers On But Untested

Bell & Howell Schools Oscilloscope IOD-4540 / EIA-416

MANUAL Bell and Howell Schools Assembly 9570 Oscilloscope

HP Hewlett-Packard Oscilloscope Model 120B - Powers on but untested.

Bell & Howell School Model 34 Oscilloscope