Specialized - Cathode Ray ·CathodeRay
Nine-inch high-resolution cathode-ray tube with magnetic focusing and deflection, designed for flying-spot scanning or photographic recording. Its high-voltage fine-detail display supports optical image conversion.
Nine-inch high-resolution cathode-ray tube for flying-spot scanning or photographic recording with magnetic focus and deflection.
General specifications
Properties common to every published source and operating point.
Electrical assignments shared by every tube using this base designation.
No verified pinout is recorded for this base designation.
1 physical section, each with unique specifications.
Section 1
Promoted fields were populated only where the Ferranti sheet maps cleanly to the locked schema; additional ratings and operating values are retained in TUBE_SECTION_PARAMETER.
Source-dependent data
Each block preserves the test conditions and published values from one reference. Values from different sources are intentionally kept separate.
Data set 01
Published operating points and test conditions from this source.
Anode voltage
25000 V
Visual cutoff grid voltage
-210 V
Grid drive at 100uA beam current
35 V
Screen resolution
1000 lines
50fps
Focus-coil excitation
570 ampere-turns
Approximate
X-ray shielding threshold
16000 V
ShieldingMayBeRequiredAbove
Cathode-to-all capacitance maximum
8 pF
Grid-to-all capacitance maximum
8 pF