JPS54125915A - Electron beam stabilizing circuit for pickup tube - Google Patents
Electron beam stabilizing circuit for pickup tubeInfo
- Publication number
- JPS54125915A JPS54125915A JP3286078A JP3286078A JPS54125915A JP S54125915 A JPS54125915 A JP S54125915A JP 3286078 A JP3286078 A JP 3286078A JP 3286078 A JP3286078 A JP 3286078A JP S54125915 A JPS54125915 A JP S54125915A
- Authority
- JP
- Japan
- Prior art keywords
- tube
- electron beam
- cathode
- resistance
- voltage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
PURPOSE: To stabilize the electron beam for the pickup tube by connecting the resistance in series to the cathode of the pickup tube to detect the current flowing to the cathode and then controlling the heater voltage based on the voltage detected via the resistance.
CONSTITUTION: In the operation circuit which actuates pickup tube 1, resistance 14 is connected in series to cathode 3 of tube 1 to detect the voltage caused across resistance 14 by current IK flowing to cathode 3. And this voltage detected by resistance 14 is applied to controller 15 provided at the connection between heater 2 and cathode 3 of tube 1. Then the change of current IK caused by deterioration of the emission of tube 1 is detected, and heater voltage VF is controlled by the output of controller 15 and based on the detected voltage. Thus, the electron beam is stabilized for tube 1.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3286078A JPS54125915A (en) | 1978-03-24 | 1978-03-24 | Electron beam stabilizing circuit for pickup tube |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3286078A JPS54125915A (en) | 1978-03-24 | 1978-03-24 | Electron beam stabilizing circuit for pickup tube |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54125915A true JPS54125915A (en) | 1979-09-29 |
Family
ID=12370590
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3286078A Pending JPS54125915A (en) | 1978-03-24 | 1978-03-24 | Electron beam stabilizing circuit for pickup tube |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54125915A (en) |
-
1978
- 1978-03-24 JP JP3286078A patent/JPS54125915A/en active Pending
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