Tube-number record
CRM 121
0 archive entries
CRM 121 is a tube type in the TubeDatabase archive (class: Cathode Ray Tube). Recorded specifications: brand Mazda, construction Display / CRT, socket Octal, and maximum plate voltage 6000 V. The archive does not yet hold a photographed example of this type.
BrandMazda
ClassCathode Ray Tube
BaseOctal
Filament2 V @ 1.4 mA
Construction
Primary TypeDisplay / CRT
EnvelopeGlass
Sections1
Filament / Heater
Heater NotesSeparate winding recommended; one end connected to cathode.
Absolute Maximum Ratings
Plate Voltage6000 V
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Typical Picture Reproduction | 5500 V | — | — | — | — |
Application Notes
Recommended mean anode voltage not less than 5,000V for screen colour considerations. Safety glass should be used to protect against implosion. Keep rubber support at least 6 inches from the screen end of the internal black coating.
Datasheets
Datasheet: CRM121.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
0 results