GB451117A - Improvements in or relating to electrical time base arrangements for use in oscillographic observations and the like - Google Patents
Improvements in or relating to electrical time base arrangements for use in oscillographic observations and the likeInfo
- Publication number
- GB451117A GB451117A GB295635A GB295635A GB451117A GB 451117 A GB451117 A GB 451117A GB 295635 A GB295635 A GB 295635A GB 295635 A GB295635 A GB 295635A GB 451117 A GB451117 A GB 451117A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- condenser
- grid
- voltage
- anode
- 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
- H03K6/00—Manipulating pulses having a finite slope and not covered by one of the other main groups of this subclass
- H03K6/02—Amplifying pulses
Landscapes
- Elimination Of Static Electricity (AREA)
- Polyesters Or Polycarbonates (AREA)
- Photoreceptors In Electrophotography (AREA)
Abstract
451,117. Valve generating circuits. COSSOR, Ltd., A. C., and BEDFORD, L. H., Highbury Grove, London. Jan. 29, 1935, No. 2956. [Class 40 (v)] In a condenser-relaxation oscillator for use in television scanning and in oscillographs, a compensating-voltage opposite in phase to its anode voltage is applied to a grid of the condenser-charging valve, with the object of linearizing the charging-curve of the condenser. The compensating-voltage is provided by an auxiliary valve. As shown, the condenser C1 is charged through a saturated valve V1 and discharges through a valve V2. A fraction of the voltage variations across the valve V1 is applied by a condenserpotentiometer C2, C3, to the grid of an auxiliary valve V3 the anode of which is fed through a resistance R3. Voltages of equal magnitude and opposite phase are fed from the anodes of valves V2, V3 through condensers to the deflecting-plates PX1, PX2 of the cathoderay tube O. A fraction of the anode voltage of the valve V3 is fed back by a potentiometer R7 and a condenser to the grid of the valve V1, so that in spite of ohmic leaks across the valve V1 or incomplete saturation the charging-curve for the condenser C1 is maintained linear. In a modification, the anode current of the valve V3 traverses a variable resistance in the cathode lead of the valve V1, the grid of which is connected directly or through a condenser to the negative supply N. Another grid in the valve V1 may be used for velocity modulation or other purposes, and a pentagrid valve may be employed. Specification 448,111 is referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB295635A GB451117A (en) | 1935-01-29 | 1935-01-29 | Improvements in or relating to electrical time base arrangements for use in oscillographic observations and the like |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB295635A GB451117A (en) | 1935-01-29 | 1935-01-29 | Improvements in or relating to electrical time base arrangements for use in oscillographic observations and the like |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB451117A true GB451117A (en) | 1936-07-29 |
Family
ID=9749202
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB295635A Expired GB451117A (en) | 1935-01-29 | 1935-01-29 | Improvements in or relating to electrical time base arrangements for use in oscillographic observations and the like |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB451117A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2523108A (en) * | 1948-04-30 | 1950-09-19 | Rca Corp | Deflection of electron beams |
| US2887613A (en) * | 1956-10-23 | 1959-05-19 | Heyer Ind Inc | Sweep circuit |
| DE768159C (en) * | 1941-02-05 | 1959-08-13 | Opta Radio A G | Arrangement for generating tilting vibrations |
| DE973547C (en) * | 1936-04-29 | 1960-03-24 | Emi Ltd | Circuit arrangement for generating saegezahnfoermiger currents |
-
1935
- 1935-01-29 GB GB295635A patent/GB451117A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE973547C (en) * | 1936-04-29 | 1960-03-24 | Emi Ltd | Circuit arrangement for generating saegezahnfoermiger currents |
| DE768159C (en) * | 1941-02-05 | 1959-08-13 | Opta Radio A G | Arrangement for generating tilting vibrations |
| US2523108A (en) * | 1948-04-30 | 1950-09-19 | Rca Corp | Deflection of electron beams |
| US2887613A (en) * | 1956-10-23 | 1959-05-19 | Heyer Ind Inc | Sweep circuit |
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