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{{Oscilloscope Sidebar | | {{Oscilloscope Sidebar | ||
|manufacturer=Tektronix | |||
summary=1 GHz tube scope | | |series= | ||
image=Tek 519 with bezel.jpg | | |designers=Cliff Moulton | ||
caption=Tek 519 | | |model= 519 | ||
introduced=1961 | | |summary=1 GHz tube scope | ||
discontinued=1974 | | |image=Tek 519 with bezel.jpg | ||
manuals= | |caption=Tek 519 | ||
* [ | |introduced=1961 | ||
* [ | |discontinued=1974 | ||
|manuals= | |||
* [[Media:070-243.pdf|Tek 519 manual]] (OCR, color, whole schematics) | |||
* [[Media:Tek 519 with mods.pdf|Tek 519 manual with Modifications]] (split schematics, OCR) | |||
* [[Media:Tek 519 early.pdf|Tektronix 519 Early Manual]] (OCR) | |||
}} | }} | ||
The '''Tektronix 519''' is a high-speed oscilloscope made by Tektronix from | The '''Tektronix 519''' is a high-speed oscilloscope made by Tektronix from | ||
[[introduced_in_1961|1961]] until 1974. | [[introduced_in_1961|1961]] until 1974. | ||
It was designed by [[Cliff Moulton]], who also designed the Type [[130]] LC Meter. | It was designed by [[Cliff Moulton]], who also designed the Type [[130]] LC Meter. | ||
{{BeginSpecs}} | |||
{{Spec | Channels | One vertical channel }} | |||
{{Spec | Bandwidth | DC to 1 GHz }} | |||
{{Spec | Rise time | < 0.35 ns }} | |||
{{Spec | Deflection | < 10 V/div, CRTs individually calibrated }} | |||
{{Spec | Sweep | 2 ns/div to 1 μs/div }} | |||
{{Spec | CRT | [[154-356]], [[154-308]] for serial numbers ≥1017 }} | |||
{{Spec | Input impedance | 125 Ω }} | |||
{{Spec | Power consumption | 650 W }} | |||
{{EndSpecs}} | |||
==Internals== | ==Internals== | ||
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Consult your FE to learn about the advantages, limitations, and delivery time on this or other modified instruments." | Consult your FE to learn about the advantages, limitations, and delivery time on this or other modified instruments." | ||
</blockquote> | </blockquote> | ||
A [[Media:Campbell83 transient recorders.pdf|1983 IEEE Transactions on Nuclear Science paper]] | |||
includes a chart that mentions in Figure 10 the 3 GHz 519C [[introduced in 1963]]. | |||
The 519C was sold to Lawrence Livermore Labs and the Nuclear Test Site. | The 519C was sold to Lawrence Livermore Labs and the Nuclear Test Site. | ||
The 519C uses the [[T5192]] CRT. | The 519C uses the [[T5192]] CRT. | ||
* [http://bama.edebris.com/download/tek/519/519.djvu 519 manual] (DJVU) | * [http://bama.edebris.com/download/tek/519/519.djvu 519 manual] (DJVU) | ||
* [http://w140.com/tek_519_1968_catalog.pdf Tektronix 519 in 1968 Catalog (PDF) | * [http://w140.com/tek_519_1968_catalog.pdf Tektronix 519 in 1968 Catalog] (PDF) | ||
The 519 came with a set of adapters performing various functions such as interfacing the | The 519 came with a set of adapters performing various functions such as interfacing the | ||
125 Ω input impedance of the 519 with the more common 50 Ω impedance of many cables | 125 Ω input impedance of the 519 with the more common 50 Ω impedance of many cables and instruments. | ||
and instruments. | |||
One example is the [[017-0019-00]]. | One example is the [[017-0019-00]]. | ||
==See Also== | |||
* [[017-053]] | |||
==Pictures== | |||
<gallery> | <gallery> | ||
<!--Tek 519 front.jpg|519 front view--> | <!--Tek 519 front.jpg|519 front view--> | ||
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519 left.JPG | 519 left.JPG | ||
519 right.JPG|Delay line around the EHT section | 519 right.JPG|Delay line around the EHT section | ||
Spiroline cross-section.jpg | Cross section of Spir-o-line rigid coax (delay line) | |||
519 crt defl.jpg|CRT deflection trimmers* | 519 crt defl.jpg|CRT deflection trimmers* | ||
519_defl_drawing.gif|Drawing from Devere book | 519_defl_drawing.gif|Drawing from Devere book | ||
Line 165: | Line 179: | ||
Timkoeth 519 TWK 6529.jpg | Timkoeth 519 TWK 6529.jpg | ||
Timkoeth 519 TWK 6509.jpg | Timkoeth 519 TWK 6509.jpg | ||
Timkoeth 519 TWK | Timkoeth 519 TWK 6448.jpg | ||
Timkoeth 519 TIM 4443.jpg|Homebrew Mount for DSLR | Timkoeth 519 TIM 4443.jpg|Homebrew Mount for DSLR | ||
Timkoeth 519 TWK | Timkoeth 519 TWK 1379.jpg|800 ps (FWHM) pulse from [[109|Tek 109 pulse generator]], repetitive, 2 ns/div. | ||
Timkoeth 519 TWK 6627.jpg | Timkoeth 519 TWK 6627.jpg|800 ps (FWHM) pulse from [[109|Tek 109 pulse generator]], 2 ns/div single shot taken with Nikon D3s | ||
Tek 519 left hires.jpg | Tek 519 left hires.jpg | ||
Tek 519 tx1.jpg | Tek 519 tx1.jpg | ||
Tek 519 tx2.jpg | Tek 519 tx2.jpg | ||
Tek 519 tx3.jpg | Tek 519 tx3.jpg | ||
Tek 519C in feb 1 1963 tekweek.jpg|February 1, 1963 Tekweek referencing the T519C | |||
</gallery> | </gallery> | ||
* CRT photo courtesy of [http://www.collection.archivist.info collection.archivist.info] | * CRT photo courtesy of [http://www.collection.archivist.info collection.archivist.info] | ||
* See [[Media:062-0852-01.pdf | Oscilloscope Cathode-Ray Tubes by Chuck Devere]], page 30-35. | * See [[Media:062-0852-01.pdf | Oscilloscope Cathode-Ray Tubes by Chuck Devere]], page 30-35. | ||
* See [http://www.timkoeth.com/?cat=5 Tim Koeth's Page on the Tektronix 519] | * See [http://www.timkoeth.com/?cat=5 Tim Koeth's Page on the Tektronix 519] | ||
==Components== | |||
{{Parts|519}} | |||
[[Category:Monolithic tube scopes]] | [[Category:Monolithic tube scopes]] |
Latest revision as of 09:51, 9 December 2023
The Tektronix 519 is a high-speed oscilloscope made by Tektronix from 1961 until 1974. It was designed by Cliff Moulton, who also designed the Type 130 LC Meter.
Key Specifications
Channels | One vertical channel |
---|---|
Bandwidth | DC to 1 GHz |
Rise time | < 0.35 ns |
Deflection | < 10 V/div, CRTs individually calibrated |
Sweep | 2 ns/div to 1 μs/div |
CRT | 154-356, 154-308 for serial numbers ≥1017 |
Input impedance | 125 Ω |
Power consumption | 650 W |
Internals
No Vertical Amplifier
The 519 is very unusual in that it does not contain vertical amplifiers. The input signal is passively connected to the distributed vertical deflection plates of the CRT, which are driven single-ended. This allows the scope to have 1 GHz bandwidth. The vertical deflection factor is approximately 10 V/cm.
CRT
The viewing area is two centimeters vertical, six centimeters horizontal. The spot diameter on the CRT is 0.1 mm, which corresponds to 100 mV at the input connector. Each CRT was individually characterized for risetime and deflection sensitivity and the precise value was written on the CRT and on the CRT bezel. For serial numbers 1016 and below, the CRT part number is 154-356. For serial numbers 1017 and up, the CRT part number is 154-308.
125 Ω Input Impedance
The input to the 519 has an impedance of 125 Ω. The input connector is a special 125 Ω GR-874 connector made by Tektronix that is neither electrically nor mechanically compatible with the much more common 50 Ω GR-874 connector. Tek made a resistive impedance matching adapter, the 017-053, which presents a 50 Ω input (but attenuates the signal).
Rigid Coax Delay Line
To allow viewing of the leading edge of pulses, there is a rigid coaxial 45 ns delay line between the input and the CRT.
Note that 45 nanoseconds is an unusually short delay. For comparison, the delay line in a 547 is 170 ns. Keeping the delay short minimizes degradation of fast pulses, but it necessitates a trigger and sweep circuit with quick response.
A 519 can also be used with a pretrigger pulse generator like the 111.
Trigger and Sweep
The sweep is triggered using a 20 mA, 4 pF tunnel diode. The horizontal deflection ramp signal of a 519 is generated by a 4CX250F external anode, radial-beam tube that is cooled by forced air sent from a blower through a duct.
The total accelerating voltage of the 519 is 24 kV.
The 519 contains a calibration step generator that produces voltage steps with 100 picosecond rise time, and a rate generator that generates pulses with 500 ps rise times. The step generator utilizes a charged line which is discharged through a reed relay, while the rate generator uses a transistor in avalanche configuration. The reed relay in the step generator is tuned in part by listening to it.
Unusual Physical Construction
The physical construction and styling of the 519 differs from that of the other Tek scopes of the same period. There are multiple reasons for this. First, it has an unusually long CRT. Also, the large 125 Ω coaxial delay line (seen in the photo) had to fit inside the cabinet.
Finally, the 519 has an extra-large power transformer and a large blower for the 4CX250 tube. The mass of these extra components necessitated a larger, sturdier cabinet than, for example, the 545. The sheet aluminum used in the case of the 519 is thicker than that of the other Tek scopes of the period. The 519 weighs 99 pounds and consumes 650 watts.
Different CRT Bezels
The 519 came with two different bezels. Pictured in Tek Catalog 20 through 26 is the early version which was actually a camera mount designed to be compatible with the C19 camera. It had a unique removable part with a graticule that could be slid down such that it would not be in between the CRT beam and the camera lens. Most of the non-used area of the CRT faceplate was covered by the black plastic material of the graticule cover. This graticule cover was changed slightly as is shown in the pictures of the 519 in Tek Catalogs 27 and later. It still was designed to mount the C19 camera. (For what reason was the bezel design changed?)
The 519 is probably the only Tek scope to come standard with a camera mount for a bezel. You had to buy camera mounting frames as accessories for the other scopes.
Production
Early 519's in the '61-'66 period were calibrated in Plant 2 in a group managed by Bob Randall. Three of the men calibrating 519's in that period were Stan Griffiths, Dick Bellamy, and John A. (What is John's last name?) During this period, Cliff Moulton would visit the calibration operation to answer any questions that would arise as the scopes were being prepared for shipment to customers.
Later 519's were calibrated at Plant 2 Test-Final in a group managed by Jack Lyngdal. Two of the calibration people that worked there were Norm Jenkins and Jack. (What is Jack's last name?) Another man who calibrated 519's in this later period was Mark Balcom.
The distributed deflection plate delay network had to be hand-trimmed, which was done prior to putting it inside the CRT envelope. It is possible that this was done using a TDR.
519C: A 3 GHz Version of the 519
Tektronix Catalog 22 (mid'63-mid'64) refers to a modified (MOD 795) 519 with response extended to 3 GHz:
DC-to-3 GIGACYCLE OSCILLOSCOPE: This modified Type 519 Oscilloscope incorporates a coaxial-deflection crt to achieve a risetime of 0.13nsec, corresponding to a 3000-Mc bandwidth. Deflection factor is approximately 180v/cm. Usable viewing area is 2x4 cm. Consult your FE to learn about the advantages, limitations, and delivery time on this or other modified instruments."
A 1983 IEEE Transactions on Nuclear Science paper includes a chart that mentions in Figure 10 the 3 GHz 519C introduced in 1963. The 519C was sold to Lawrence Livermore Labs and the Nuclear Test Site. The 519C uses the T5192 CRT.
- 519 manual (DJVU)
- Tektronix 519 in 1968 Catalog (PDF)
The 519 came with a set of adapters performing various functions such as interfacing the 125 Ω input impedance of the 519 with the more common 50 Ω impedance of many cables and instruments. One example is the 017-0019-00.
See Also
Pictures
-
519 adapter kit
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519 adapter kit case
-
-
Delay line around the EHT section
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Cross section of Spir-o-line rigid coax (delay line)
-
CRT deflection trimmers*
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Drawing from Devere book
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Blower and duct
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Sweep tube and duct
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Vertical terminator
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Trigger pickoff
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-
-
-
-
high voltage power supply
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-
-
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Rate Generator (early)
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Rate Generator (late)
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Power Supply
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Heater Supply and Wiring
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Timebase Generator
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Timing Switch
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Timebase Gate and Unblanking
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CRT Circuit
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Timebase Trigger and Holdoff
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Calibration Step Generator
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Trigger Switch and Vertical Delay
-
-
-
-
-
-
Homebrew Mount for DSLR
-
800 ps (FWHM) pulse from Tek 109 pulse generator, repetitive, 2 ns/div.
-
800 ps (FWHM) pulse from Tek 109 pulse generator, 2 ns/div single shot taken with Nikon D3s
-
-
-
-
-
February 1, 1963 Tekweek referencing the T519C
- CRT photo courtesy of collection.archivist.info
- See Oscilloscope Cathode-Ray Tubes by Chuck Devere, page 30-35.
- See Tim Koeth's Page on the Tektronix 519
Components
Some Parts Used in the 519
Part | Part Number(s) | Class | Description | Used in |
---|---|---|---|---|
120-0186-00 | 120-0186-00 | Discrete component | power transformer | 519 |
4CX250F | 154-0300-00 | Vacuum Tube (Tetrode) | beam power tetrode | 519 |
6DJ8 | 154-0187-00 • 154-0305-00 | Vacuum Tube (Dual Triode) | dual triode | 067-506 • 111 • 132 • 161 • 310A • 316 • 317 • 502 • 502A • 503 • 504 • 506 • 515 • 516 • 519 • 526 • 529 • RM529 • 533 • 535 • 536 • 543 • 544 • 545 • 545A • 545B • 546 • 547 • 549 • 555 • 556 • 561A • 561S • 564 • 565 • 567 • 581 • 581A • 585 • 585A • 661 • 1A4 • 1S1 • 60 • 2A60 • 63 • 2A63 • 67 • 2B67 • 3A1 • 3A1S • 3A2 • 3A3 • 3A6 • 3A7 • 72 • 3A72 • 75 • 3A75 • 4S2 • 51 • 3B1 • 3B1S • 3B2 • 3B3 • 3B4 • 3M1 • 3S76 • 3T77 • 3T77A • 9A1 • 9A2 • 1121 • 80 • 81 • 82 • 86 • B • O • W • Z • Telequipment D56 • Telequipment S32A • Telequipment D52 • S-311 • Telequipment TD51 • Telequipment S52 • Telequipment S51 • Telequipment Type A • TU-4 |
6G11 | 154-0660-00 | Vacuum Tube (Pentode) | double sharp cut-off beam power pentode | 125 • 132 • 519 • 067-0502-01 • 050-0551-00 |
T5191 | 154-0356-00 • 154-0308-00 | CRT | 1 GHz CRT | 519 |
T5192 | CRT | CRT | 519 |