CN2862311Y - Modified directly heated amplifying electron tube with middle power - Google Patents
Modified directly heated amplifying electron tube with middle power Download PDFInfo
- Publication number
- CN2862311Y CN2862311Y CN 200520124086 CN200520124086U CN2862311Y CN 2862311 Y CN2862311 Y CN 2862311Y CN 200520124086 CN200520124086 CN 200520124086 CN 200520124086 U CN200520124086 U CN 200520124086U CN 2862311 Y CN2862311 Y CN 2862311Y
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- China
- Prior art keywords
- electron tube
- mica sheet
- cathode
- anode
- negative electrode
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Abstract
The utility model relates to power amplifier tube, in particular to improved heaterless medium-power amplifier tube, which includes tube body, cathode, anode, and gate electrode. The cathode comprises four groups of reversed V-shaped Ca-Sr-Ba oxide filaments 1 in cascade connection. Hanger of its cathode is combined cantilever-type tungsten filament elastic hanger 2. Positioning/aligning sheet of its cathode and gate electrode is combined positioning/aligning mica sheet. Its beneficial effects include: working temperature of its cathode is 780 Celsius degree, heating power is 6 W, power consumption is low, brittle rupture of cathode is avoided, good contact between anode hole and lead wire can be guaranteed, spark and noise during operation are avoided, firmness of tube core is improved, installation precision is high, and electrical parameters are more centralized.
Description
Technical field
The utility model relates to the power amplification electron tube, particularly relates to power amplification electron tube in the modified model directly-heated type.
Background technology
The power amplification cathode for electron tube mostly is a carbonized thoriated tungsten carthode in existing, and its working temperature is 1750 ℃, and its heating power is 37W, and power consumption is big; Its anode mostly is the overall structure graphite anode, and its anode hole cooperates pine with lead-out wire, has the drawback of high voltage arc; Its negative electrode, grid, anode are fixed with potsherd, because the potsherd machining accuracy is low, the electrode spacing scattered error is big, easily causes the parameter scattered error big.
The utility model content
The purpose of this utility model is at the above-mentioned defective that exists in the prior art, and power amplification electron tube in a kind of modified model directly-heated type is provided.
The technical solution of the utility model comprises electron tube body, negative electrode, anode and grid, it is characterized in that: its negative electrode is four groups of inverted V-shaped cascaded structure calcium strontium barium ternary oxide filaments, and its filament hangs on the filament suspension hook; Its suspension hook is combination cantilever-type tungsten filament elasticity suspension hook, and suspension hook one end is fixed on bow-shaped shrapnel one end, and the other end of bow-shaped shrapnel has a hole, is riveted on by a tubular rivet on the last built-up mica sheet of electron tube; Its anode is a cross cross section hollow plumbago combined anode, is made up of the arch graphite half light utmost point of two wall thickness 1.0-1.5mm, fineness △ △ △ 8; Its negative electrode, grid location centering piece are composite type location centering mica sheet, form by mica sheet and a location mica sheet that is mounted on its reverse side of a vertical groove by a center, mica sheet right side, location and above-mentioned groove center line and suspension hook suspension centre are on same vertical line position, so that described four groups of inverted V-shaped filament centerings, to improve the precision of spacing between electrode, and guarantee between negative electrode and grid to neutrality, electrical quantity is concentrated.
Be with the Guan Ji of brass bushing on its Guan Jiwei earthenware matrix, to strengthen the aesthetic feeling of its pipe.The length of its pin increases 5mm than power tube pin in existing, to improve contacting of pin and base.Its pipe top mica sheet is the imperfect moon shape mica sheet, to strengthen its pipe bulk strength.Be provided with two getter rings in its pipe middle and lower part, to guarantee to manage interior vacuum.
The beneficial effects of the utility model are that its negative electrode working temperature is 780 ℃, power consumption is little, cathode efficiency can be improved, the negative electrode brittle failure can be avoided, guarantee that anode hole is good with contacting of lead-out wire, can avoid taking place in the work sparking and noise, can improve the fastness of tube core, the assembly precision of parts, make electrical quantity more concentrated.
Description of drawings:
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the structure enlarged diagram of four groups of inverted V-shaped cascaded structure calcium strontium barium ternary oxide filaments 1 among Fig. 1;
Fig. 3 is the structure enlarged diagram that makes up cantilever-type spring suspension hook 2 and integrated positioning centering mica sheet 3 among Fig. 1;
Fig. 4 is the structure enlarged diagram of the horizontal section of cross cross section hollow plumbago combined anode 5 among Fig. 1.
Embodiment
See above-mentioned accompanying drawing concrete structure of the present utility model as can be known: its negative electrode is four groups of inverted V-shaped cascaded structure calcium strontium barium ternary oxide filaments 1, and its filament hangs over (Fig. 1) on the filament suspension hook 2, and its heating power is 6W.
Its suspension hook is combination cantilever-type tungsten filament elasticity suspension hook 2, and suspension hook 2 one ends are welded on bow-shaped shrapnel 7 one ends, and the other end of bow-shaped shrapnel 7 has a hole, is riveted on by a tubular rivet 8 on last built-up mica sheet 3 left sides of electron tube.
Its anode is a cross cross section hollow plumbago combined anode 5, by the arch graphite half light utmost point 10 of two wall thickness 1.5mm, fineness △ △ △ 8, groove 12 is arranged on half light pole plate limit, two plates are superimposed, in groove 12, be inserted with stem stem anode tap (not shown), in the half light combination bore, insert nickel bar 11, be with rivet (not shown) on these bar two ends, (Fig. 1, Fig. 4) formed in spot welding.
Its negative electrode, grid location centering sheet are composite type location centering mica sheet, form by mica sheet 3 and a location mica sheet 4 that is mounted on its reverse side of a vertical groove 9 by a center, mica sheet 4 right sides, location and groove 9 center lines and suspension hook 2 suspension centres are on same vertical line position, so that described four groups of inverted V-shaped tungsten filament centerings, in the parameter set, improving the precision of spacing between electrode, and guarantee between negative electrode and grid to neutral (Fig. 3).
Be with the pipe base 14 of brass bushing on its Guan Jiwei ceramic body Guan Ji.
The length of its pin one 5 increases 5mm than power tube pin in existing, to improve contacting of pin and base.
Its pipe top mica sheet is imperfect moon shape mica sheet (not shown), with the reinforced pipe bulk strength.
Its pipe middle and lower part is provided with two getter rings 13, to guarantee to manage interior vacuum.
Claims (5)
1, power amplification electron tube in a kind of modified model directly-heated type comprises electron tube body, negative electrode, anode and grid, it is characterized in that: its negative electrode is four groups of inverted V-shaped cascaded structure calcium strontium barium ternary oxide filaments; Its negative electrode suspension hook is combination cantilever-type tungsten filament elasticity suspension hook, and suspension hook one end is fixed on bow-shaped shrapnel one end, and the other end of bow-shaped shrapnel has a hole, is riveted on by a tubular rivet on the last built-up mica sheet of electron tube; Its anode is a cross cross section hollow plumbago combined anode, is made up of the arch graphite half light utmost point of two wall thickness 1.0-1.5mm, fineness △ △ △ 8; Its negative electrode, grid location centering sheet are composite type location centering mica sheet, be made up of mica sheet and a location mica sheet that is mounted on its reverse side of a vertical groove a center, mica sheet right side, location and above-mentioned groove center line and suspension hook suspension centre are on same vertical line position.
2, power amplification electron tube in a kind of modified model directly-heated type according to claim 1, it is characterized in that: its Guan Jiwei earthenware matrix is with the Guan Ji of brass bushing.
3, power amplification electron tube in a kind of modified model directly-heated type according to claim 1 is characterized in that: the length of its pin increases 5mm than power tube pin in existing.
4, power amplification electron tube in a kind of modified model directly-heated type according to claim 1, it is characterized in that: mica sheet is an imperfect moon shape top mica sheet on it.
5, power amplification electron tube in a kind of modified model directly-heated type according to claim 1 is characterized in that: its pipe middle and lower part is provided with two getter rings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520124086 CN2862311Y (en) | 2005-12-16 | 2005-12-16 | Modified directly heated amplifying electron tube with middle power |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520124086 CN2862311Y (en) | 2005-12-16 | 2005-12-16 | Modified directly heated amplifying electron tube with middle power |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2862311Y true CN2862311Y (en) | 2007-01-24 |
Family
ID=37659941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520124086 Expired - Lifetime CN2862311Y (en) | 2005-12-16 | 2005-12-16 | Modified directly heated amplifying electron tube with middle power |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2862311Y (en) |
-
2005
- 2005-12-16 CN CN 200520124086 patent/CN2862311Y/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20070124 |
|
| EXPY | Termination of patent right or utility model | ||
| DD01 | Delivery of document by public notice |
Addressee: Wang Lige Document name: Notification of Expiration of Patent Right Duration |