511: Difference between revisions

Jump to navigation Jump to search

511 (view source)

Revision as of 09:13, 5 February 2023

1,741 bytes added ,  5 February 2023
no edit summary
No edit summary
No edit summary
(9 intermediate revisions by the same user not shown)
Line 10: Line 10:
|designers=Frank Hood;Logan Belleville;Howard Vollum
|designers=Frank Hood;Logan Belleville;Howard Vollum
|manuals=
|manuals=
* [[Media:IM-511.pdf|Tektronix 511/511A Manual]] (PDF, OCR, includes S/N 5100+ information)
* [[Media:IM-511.pdf|Tektronix 511/511A Manual]] (OCR, includes S/N 5100+ information)
* [[Media:IM-511A-1.pdf|Tektronix 511A Manual Pre SN 2869]] (PDF, OCR)
* [[Media:IM-511A-1.pdf|Tektronix 511A Manual SN <2869]] (OCR)  
* [[Media:IM-511A-2.pdf|Tektronix 511A Manual SN 2869-5099]] (PDF, OCR)
* [[Media:IM-511A-2.pdf|Tektronix 511A Manual revised in 1951 for SN 2869-5099]] (OCR)
* [https://richardsears.wordpress.com/2012/01/07/near-the-beginning-of-an-era-the-tektronix-511a/ Richard Sears' 511A Page]
* [https://richardsears.wordpress.com/2012/01/07/near-the-beginning-of-an-era-the-tektronix-511a/ Richard Sears' 511A Page]
* [https://w140.com/1947+Tektronix_Catalog.pdf Tektronix 1947 Catalog with 511] (PDF)
* [[Media:1947_Tektronix_Catalog.pdf|Tektronix 1947 "Catalog" (511 only)]]
}}
}}
The 511 was '''Tek's first oscilloscope''', [[introduced in 1947|introduced in June 1947]], but the second product (the first was the [[101|Type 101 Video Calibrator]]).
The 511 was Tektronix' '''first oscilloscope''', [[introduced in 1947|introduced in June 1947]] but only the second product released by the young company – the first was the [[101|Type 101 Video Calibrator]].
A revised version, the 511A, was [[introduced in 1950]]. [[Howard Vollum]] was directly involved with the design of the 511.


==Specifications==
According to TekWeek March 23, 1984, ''"511" stood for 5-inch tube, 1 channel, 1st model.  It sold for $795<sup>[Note 1]</sup>, compared to $1,800 for a two-piece Dumont scope that was mostly pre-war technology.''
The 511A does not have response down to DC − frequency range is specified as 10 Hz to 10 MHz.  
 
There is also a 511AD, where the "D" in the model number indicates that it has a L-C [[delay line]].
An improved version, the 511A, was [[introduced in 1948|introduced in November 1948]].  Major improvements included a regulated power supply for CRT and calibrator (s.b.)
The 511 weighs 65 pounds (29 kg) and consumes 180 W. 
 
The 511A weighs 50 pounds (23 kg) and consumes 230 W.
[[Howard Vollum]] was directly involved with the design of the 511.
[[Category:Specifications needed]] ''please add''
 
{{BeginSpecs}}
{{Spec | Bandwidth  | 5 Hz to 10 MHz (8 MHz with 2-stage amplifier); no DC coupling }}
{{Spec | Rise time  | 40 ns (50 ns with 2-stage amplifier) }}
{{Spec | Deflection | Without amplifier, 27 V per cm maximum, 200 V/cm minimum, DC or peak to peak AC.  1-stage amplifier, 2.7 V/cm maximum, 40 V/cm minimum.  2-stage amplifier, 0.27 V/cm maximum, 4 V/cm minimum.  }}
{{Spec | Input      | 1 MΩ // 40 pF; 600 V max. DC+peak AC }}
{{Spec | Sweep      | 100 ns/cm to 10 ms/cm + variable; ×5 magnifier }}
{{Spec | Trigger    | 0.5 to 50 V (Peak) sine or pulse ≥50 ns }}
{{Spec | X input    | DC coupled via 100 K potentiometer and sweep amplifier; 1.5 V/cm or less; DC to 800 kHz }}
{{Spec | CRT        | [[5CP]], 3 kV acceleration }}
{{Spec | Calibrator | Clipped sine wave of power line frequency, ranges 0-0.3, 0-1, 0-3, 0-10, 0-30, 0-100 V<sub>p-p</sub> }}
{{Spec | Outputs    | Sweep sawtooth, 20 V<sub>p-p</sub>; Positive and negative gate, 40 V<sub>p-p</sub> }}
{{Spec | Weight    | 511 – 29 kg (65 lb); 511A – 23 kg (50 lb); }}
{{Spec | Dimensions | 15½" high, 12½" wide, 21 ½" deep }}
{{Spec | Power      | 511 – 180 W; 511A – 105-125 or 210-250 V, 50-60 Hz, 230 W }}
{{EndSpecs}}
(511A unless noted otherwise)
 
There is also a 511AD, where the "D" in the model number indicates that it has an L-C [[delay line]].
 
==Prices==
* $795 in 1948 (~$9,700 in 2023 dollars)


==Internals==
==Internals==
Line 58: Line 78:


==History==
==History==
* See also https://vintagetek.org/tektronix-first-products/
Tektronix engineer [[Frank Hood]] recollects:
Tektronix engineer [[Frank Hood]] recollects:
<blockquote>My first assignment was to build or modify some special instruments for Bonneville Power. They wanted a device that would detect and record any lightning strikes or arc-overs on the high voltage power lines running between Vancouver, Wash. and other cities such as Longview, Spokane, etc. They wanted to detect each event, in a fraction of a millionth of a second, then to send a pulse of energy down the defective line and measure the time it took to return, (this was an application much like radar). They wanted markers displayed at each mile and fraction of a mile so that they could determine the exact location of the fault. They needed to record a photographic image for latter study. Two or more such instruments were built. We called these Type 511B. They worked very well and were used for several years.
<blockquote>My first assignment was to build or modify some special instruments for Bonneville Power. They wanted a device that would detect and record any lightning strikes or arc-overs on the high voltage power lines running between Vancouver, Wash. and other cities such as Longview, Spokane, etc. They wanted to detect each event, in a fraction of a millionth of a second, then to send a pulse of energy down the defective line and measure the time it took to return, (this was an application much like radar). They wanted markers displayed at each mile and fraction of a mile so that they could determine the exact location of the fault. They needed to record a photographic image for latter study. Two or more such instruments were built. We called these Type 511B. They worked very well and were used for several years.
Line 67: Line 89:


==Links==
==Links==
[http://richardsears.wordpress.com/2012/01/07/near-the-beginning-of-an-era-the-tektronix-511a/ Detailed article on 511A]
* [http://richardsears.wordpress.com/2012/01/07/near-the-beginning-of-an-era-the-tektronix-511a/ Detailed article on 511A]
* ''[Note 1]'' TekWeek March 23, 1984 says $595 but the advertised price was $795 (see below).


==Pictures==
==Pictures==
===511===
<gallery>
<gallery>
Tek 511 1.jpg|511
Tek 511 1.jpg|511
Line 75: Line 99:
Tek 511 3.jpg|511
Tek 511 3.jpg|511
Tek 511 4.jpg|511
Tek 511 4.jpg|511
Vollum scope - Electronics Magazine April 1948.jpg | Vollum scope - Electronics Magazine, April 1948
Septad511.jpg|511 ad from September 1948
</gallery>
===511A===
<gallery>
Tek 511a 1.JPG|511A
Tek 511a 1.JPG|511A
Tek 511a 2.JPG|511A
Tek 511a 2.JPG|511A
Line 84: Line 114:
511a-vertical.png|511A
511a-vertical.png|511A
511a sweep.png|511A
511a sweep.png|511A
Vollum scope - Electronics Magazine April 1948.jpg | Vollum scope - Electronics Magazine, April 1948
511A ad from Electronics 1948-11 p239.jpg | 511A ad from Electronics Magazine, November 1948, p.239
Septad511.jpg|511 Ad from September 1948
</gallery>
 
===511AD===
<gallery>
Tek 511ad 1.jpg|511AD
Tek 511ad 1.jpg|511AD
Tek 511ad 2.jpg|511AD
Tek 511ad 2.jpg|511AD
Retrieved from "https://w140.com/tekwiki/wiki/Special:MobileDiff/69632...80015"

Navigation menu