GB767606A - Improvements relating to electrical sawtooth waveform generators - Google Patents
Improvements relating to electrical sawtooth waveform generatorsInfo
- Publication number
- GB767606A GB767606A GB1683154A GB1683154A GB767606A GB 767606 A GB767606 A GB 767606A GB 1683154 A GB1683154 A GB 1683154A GB 1683154 A GB1683154 A GB 1683154A GB 767606 A GB767606 A GB 767606A
- Authority
- GB
- United Kingdom
- Prior art keywords
- potential
- screen
- anode
- suppressor
- grid
- 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.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K4/00—Generating pulses having essentially a finite slope or stepped portions
- H03K4/06—Generating pulses having essentially a finite slope or stepped portions having triangular shape
- H03K4/08—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape
- H03K4/10—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements vacuum tubes only
- H03K4/12—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements vacuum tubes only in which a sawtooth voltage is produced across a capacitor
- H03K4/20—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements vacuum tubes only in which a sawtooth voltage is produced across a capacitor using a tube with negative feedback by capacitor, e.g. Miller integrator
- H03K4/22—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements vacuum tubes only in which a sawtooth voltage is produced across a capacitor using a tube with negative feedback by capacitor, e.g. Miller integrator combined with transitron, e.g. phantastron, sanatron
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Details Of Television Scanning (AREA)
Abstract
767,606. Saw-tooth generating circuits. METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. May 23, 1955 [June 8, 1954], No. 16831/54. Class 40(6) In a miller transitron saw tooth generator of the type in which the miller capacitance is coupled between anode and grid through a cathode follower, the transitron coupling between screen and suppressor grids is of the direct current type and a variable point in the cathode circuit of the cathode follower is connected to the screen and suppressor grids so that part of the positive going fly back voltage wave may retrigger the sweep when the anode potential reaches a predetermined level. In the circuit shown the miller capacitance discharges linearly until the anode potential of the valve V2 bottoms. The current is then diverted to the screen grid thus lowering the screen grid potential. The coupling through'R4 causes the suppressor potential to decrease correspondingly, hastening the lowering of the screen grid potential and this continues until the anode current is cut off. This causes the anode' potential to rise and when the corresponding potential at the tapping on cathode follower resistance' R8 has risen sufficiently the diode V3 conducts and supplies a positive going voltage to the screen and suppressor grids and initiating the next sweep. As the tapping of potentiometer R8 is moved towards the earthy end the repetition frequency of the output wave is decreased and the amplitude increased until a point is reached at which the circuit is no longer free running. Synchronizing or triggering voltages may be applied to the screen and suppressor grid through a diode V1.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1683154A GB767606A (en) | 1954-06-08 | 1954-06-08 | Improvements relating to electrical sawtooth waveform generators |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1683154A GB767606A (en) | 1954-06-08 | 1954-06-08 | Improvements relating to electrical sawtooth waveform generators |
Publications (1)
Publication Number | Publication Date |
---|---|
GB767606A true GB767606A (en) | 1957-02-06 |
Family
ID=10084468
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1683154A Expired GB767606A (en) | 1954-06-08 | 1954-06-08 | Improvements relating to electrical sawtooth waveform generators |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB767606A (en) |
-
1954
- 1954-06-08 GB GB1683154A patent/GB767606A/en not_active Expired
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