585: Difference between revisions

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1,337 bytes added ,  8 April 2018
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[[introduced_in_1959|1959]] and made through the 1960s.  (The 585A was discontinued after 1971.)
[[introduced_in_1959|1959]] and made through the 1960s.  (The 585A was discontinued after 1971.)


{{MissingSpecs}}
At 100 MHz with the [[80|Type 80 plug-in]] and up to 85 MHz with the dual-channel [[82|Type 82]], the 585 was the highest-speed general purpose scope of Tek's tube scope era (the 1 GHz [[519]] was specialized with no vertical amplifier).
 
{{BeginSpecs}}
{{Spec | Rise time | 3.5 ns with [[80 | Type 80]] plugin and [[P80|P80 probe]] }}
{{Spec | Timebase A | 50 ns/Div to 2 s/Div, 1−2−5, variable ×2.5, magnifier ×5, single sweep; X input }}
{{Spec | Timebase B | 2 μs/Div to 1 s/Div, 1−2−5, can delay timebase A by 1 μs to 10 s }}
{{Spec | CRT | [[T581]], distributed vertical deflection plates, 10 kV acceleration }}
{{Spec | Outputs | A Sawtooth, A Gate, B Gate, Calibrator (0.2 mV to 100 V<sub>p-p</sub>, 1−2−5) }}
{{EndSpecs}}


==Internals==
==Internals==
=== Plug-in Interface ===
=== Plug-in Interface ===
The 585 uses [[580-series plug-ins]], which look like [[letter-series and 1-series plug-ins]]  
The 585 uses [[580-series plug-ins]], which look like [[letter-series and 1-series plug-ins]]  
but are electrically different, primarily in the impedance of the signal interface  
but are electrically different, primarily in the impedance of the signal interface between the  
between the plug-in and the scope.  The pin-out is also different: it's essentially flipped 180° from its 530/540/550 series counterparts. 'Signal out' is on 14/16 as opposed to 1/3, etc...
plug-in and the scope.  The pin-out is also different, being essentially flipped 180° from its  
530/540/550 series counterparts (''Signal Out'' is on 14/16 as opposed to 1/3, etc.)


The [[81|Type 81]] adapter allows the use of letter-series and 1-series plug-ins in a 585.
The [[81|Type 81]] adapter allows the use of letter-series and 1-series plug-ins in a 585.
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Starting at serial number 1071, the miniature dual triode Schmitt trigger was replaced by a  
Starting at serial number 1071, the miniature dual triode Schmitt trigger was replaced by a  
10 mA [[tunnel diodes|tunnel diode]] and a pulse amplifier made with an OC171 germanium PNP
10 mA [[tunnel diodes|tunnel diode]] and a pulse amplifier made with an [[OC171]] Germanium PNP
transistor.  The tunnel diode is AC-coupled to the base-emitter junction of the transistor.
transistor.  The tunnel diode is AC-coupled to the base-emitter junction of the transistor.


=== Vertical Signal Path ===
=== Vertical Signal Path ===
Like the [[545]], [[551]], and [[555]], the 585 uses a [[distributed amplifier]] for vertical  
Like the [[545]], [[551]], and [[555]], the 585 uses two [[distributed amplifier]]s in the vertical  
deflection. Unlike the other 500-series scopes, the 585 uses a CRT with distributed vertical  
signal path, one with seven differential [[6DJ8]] stages driving a helically-wound, differential [[delay line]],
deflection plates, the [[T581]], enabling it to have both high sensitivity and fast risetime.   
followed by a five-stage differential distributed driver amplifier and a [[7699]] power stage driving the CRT.
Total CRT acceleration voltage is 10 kV.
 
Unlike the other 500-series scopes, the 585 uses a CRT with [[distributed vertical deflection plates]],  
the [[T581]], enabling it to have both high sensitivity and fast risetime.  Total acceleration voltage is 10 kV.


Several improvements were published for the 585 circuitry, including the enhanced trigger circuit.  
Several improvements were published for the 585 circuitry, including the enhanced trigger circuit.  
If all of those changes are applied to a 585, it is essentially a 585A.
If all of those changes are applied to a 585, it is essentially a 585A.
===Semiconductors===
The 585 uses semiconductor diodes as rectifiers and Germanium transistors in the 12 V power supply.


=== Rackmount Versions ===
=== Rackmount Versions ===
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{| class="wikitable"
{| class="wikitable"
|-
|-
! &nbsp;
| &nbsp;
| colspan="2" align="center" | 585
| colspan="3" align="center" | 585A
|-
! Year
! Year
! 1959
! 1959
! 1962
! 1963
! 1965
! 1971
! 1971
|-
|-
! Catalog price
! Catalog price
|align=right|  $1,675
|align=right|  $1,675
|align=right|  $1,725
|align=right|  $1,725
|align=right|  $1,725
|align=right|  $2,400
|align=right|  $2,400
|-
|-
! 2018 value
! 2018 value
|align=right| $14,330
|align=right| $14,330
|align=right| $14,220
|align=right| $14,040
|align=right| $13,640
|align=right| $14,760
|align=right| $14,760
|}
|}
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Tek-585-81-ca.jpg        | 585 with [[81|Type 81 Adapter]] and [[CA|Type CA plug-in]]
Tek-585-81-ca.jpg        | 585 with [[81|Type 81 Adapter]] and [[CA|Type CA plug-in]]
Tek 585 with 82.jpg      | 585 with [[82|Type 82]]
Tek 585 with 82.jpg      | 585 with [[82|Type 82]]
Tek585-bottom.jpg        | Bottom
Tek585-bottom.jpg        | 585 bottom view
Tek585-dl-driver-1.jpg  | Delay line driver amplifier
Tek585-dl-driver-1.jpg  | Delay line driver amplifier
Tek585-dl-driver-bot.jpg | Delay line driver amplifier (bottom)
Tek585-dl-driver-bot.jpg | Delay line driver amplifier (bottom)
Tek585-left-1.jpg        | Left side
Tek585-left-1.jpg        | 585 left side
Tek585-vert-1.jpg        | Vertical amplifier (post-delay 5-stage distributed amplifier)
Tek585-vert-1.jpg        | Vertical amplifier (post-delay 5-stage distributed amplifier)
Tek585-vert-2.jpg        | Vertical amplifier (5-stage dist amp, power output stage)
Tek585-vert-2.jpg        | Vertical amplifier (5-stage dist amp, power output stage)
Tek585-rect.jpg          | Rectifiers
Tek585-rect.jpg          | Rectifiers
Tek585-tb-a.jpg          | Time Base A
Tek585-tb-a.jpg          | Time Base A
Tek585-top-1.jpg        | Top view
Tek585-top-1.jpg        | 585 top view
</gallery>
</gallery>


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