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summary=100 MHz oscilloscope|
summary=100 MHz oscilloscope|
manuals=
manuals=
* [http://bama.edebris.com/download/tek/585/585.pdf Tektronix 585 Manual (PDF)]
* [[Media:070-171.pdf|Tektronix 585 Manual]] (PDF, OCR)
* [http://w140.com/tek_585a_serno_14416.pdf Tektronix 585A Manual (PDF)]
* [[Media:070-0391-01.pdf|Tektronix 585A Manual]] (PDF)
* [http://w140.com/tek_fcp/tek_585_fac_cal.pdf Tektronix 585 Factory Calibration Procedure (PDF)]
* ''070-0392-00.pdf RM585A Manual needed''
* [[Media:070-427.pdf|Tektronix 585A Operator's Manual]] (4"×5", PDF)
<small>
 
'''Calibration'''
* [[Media:Service Scope 39 Aug 1966.pdf|580 series gain adjustment procedure, in Service Scope 39, Aug 1966]]
* [[Media:Service Scope 39 Aug 1966.pdf|580 series gain adjustment procedure, in Service Scope 39, Aug 1966]]
* [http://w140.com/585A_Operator_Manual_orig_4x5_inches.pdf Tektronix 585A Operators Handbook (PDF)]
* [http://w140.com/tek_fcp/tek_585_fac_cal.pdf Tektronix 585 Factory Calibration Procedure, June 1961 (PDF)]
* [[Media:Tek 585a fcp nov 1968.pdf]]
* [[Media:Tek 585a fcp nov 1968.pdf|Tektronix 585A Factor Calibration Procedure, November 1968 (PDF)]]
 
'''Modifications'''
* [http://web.archive.org/web/20170727004536/http://www.reprise.com/host/tektronix/reference/581_relay.asp  Power supply Mod (From Stan's website, archived)]
</small>
}}
}}
The '''Tektronix 585''' is a 100 MHz [[580-series scopes|580-Series scope]] that Tektronix [[introduced in 1959]].
The '''Tektronix 585''' is a 100 MHz [[580-series scopes|580-Series scope]] that Tektronix [[introduced in 1959]].
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The 58x series were the first Tek scopes with [[distributed deflection plates]] and the last with a [[distributed amplifier]].
The 58x series were the first Tek scopes with [[distributed deflection plates]] and the last with a [[distributed amplifier]].
At 100 MHz (down-rated to 95 MHz in 1962 and 85 MHz for the 585A) with the [[80|Type 80 plug-in]] and up to 85 MHz with the dual-channel [[82|Type 82]],  
At 100 MHz (down-rated to 95 MHz in 1962 and 85 MHz for the 585A) with the [[80|Type 80 plug-in]] and up to 85 MHz with the dual-channel [[82|Type 82]],  
they were the highest-speed general purpose scopes of Tek's tube scope era (the 1 GHz [[519]] was specialized with no vertical amplifier).
they were the highest-speed general purpose scopes of Tek's tube scope era. (The 1 GHz [[519]] was specialized with no vertical amplifier.)


The 585's front panel layout is almost identical to the [[545A]] that came out at the same time. The 585 also shares internal construction and circuits such as the power supply with the [[535]]/[[545]] line of scopes.
The 585's front panel layout is almost identical to the [[545A]] that came out at the same time. The 585 also shares internal construction and circuits such as the power supply with the [[535]]/[[545]] line of scopes.
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{{Spec | CRT | [[T581]], distributed vertical deflection plates, 10 kV acceleration }}
{{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) }}
{{Spec | Outputs | A Sawtooth, A Gate, B Gate, Calibrator (0.2 mV to 100 V<sub>p-p</sub>, 1−2−5) }}
{{Spec | Line Voltage/Power Consumption| 107−127 or 214−234 V<sub>AC</sub>, 50-60 Hz, 890 VA / 710 W}}
{{Spec | Dimensions | (W/L/H) 330×610×432 mm³ (13"×24"×17") }}
{{EndSpecs}}
{{EndSpecs}}


==585A differences==
==585A differences==
The 585A uses a tunnel-diode trigger circuit (see below), adds HF Sync and AC LF reject modes to the timebase A trigger selector, and adds a [[trace rotation]] coil.
The 585A uses a tunnel-diode trigger circuit (see below), adds HF Sync and AC LF reject modes to the timebase A trigger selector, and adds a [[trace rotation]] coil.
 
==Links==
==Links==
* [https://www.radiomuseum.org/r/tektronix_crt_oscilloscope_585.html Tek 585] @ radiomuseum.org
* [https://www.radiomuseum.org/r/tektronix_crt_oscilloscope_585.html Tek 585] @ radiomuseum.org
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A transistor-based regulator supplies a +12.6 V heater voltage to the plug-in.
A transistor-based regulator supplies a +12.6 V heater voltage to the plug-in.


A [[delay relay|6N045 delay relay]] controls a multi-contact relay to switch supply voltages on only after the tubes are warmed up.   
A [[delay relay|6NO45 delay relay]] controls a multi-contact relay to switch supply voltages on only after the tubes are warmed up.   
When the main relay engages, the delay relay is cut out so it will be ready to delay again even after a quick interrupt in power input.
When the main relay engages, the delay relay is cut out so it will be ready to delay again even after a quick interrupt in power input.
12.6 V power supply regulation is referenced from +100V regulated output.  Since +100V is not available during the warm-up period, an unregulated +100 V (~+180 V) is fed as the reference to 12.6 V power supply during warmup period. This is cut out by the multi-contact relay post warmup.


The 585 contains a 53°C (128°F) [[thermal cutoff]].
The 585 contains a 53°C (128°F) [[thermal cutoff]].


===Semiconductors===
===Semiconductors===
The 585 uses semiconductor diodes as rectifiers and germanium transistors in the 12 V power supply, and except for unmodified
The 585 uses semiconductor diodes as rectifiers and germanium transistors in the 12.6 V power supply, and except for unmodified
instruments before SN 1070, a tunnel diode and another germanium transistor in the time base A trigger circuit.
instruments before SN 1070, a tunnel diode and another germanium transistor in the time base A trigger circuit.


=== Rackmount Versions ===
=== Rackmount Versions ===
Rackmount versions were also made, the RM585 and RM585A.
Rackmount versions were also made, the RM585 and RM585A.
===Circuit Variants===
{| class="wikitable"
<!-- Header -->
! colspan="3" | Few of the changes across 585 and 585A
|-
!
! 585
! 585A
<!-- End Header -->
<!-- Start section -->
|-style="background-color:#ffffff;"
!  rowspan="2" | A-Trigger
| SN up to 1070
*[[6EW8]] Trigger comparator.
*[[6DJ8]] Trigger multivibrator
| rowspan="2" |
*Tunnel diode trigger
*PNP trigger amplifier [[2N2048]]
|-style="background-color:#ffffff;"
| SN 1071 up
*Tunnel diode trigger
*PNP trigger amplifier [[OC171]]
<!-- End Section -->
<!-- Start section -->
|-
!Sweep Generator
| Standard
| SN 120000 up
D152/252 added to [[6AL5]] disconnect diodes
<!-- End section -->
<!-- Start section -->
|-style="background-color:#ffffff;"
! rowspan="2"| 12.6 V Power
| SN up to 3762
*Used for plug-in
*Selenium rectifier
| rowspan="2" |
*Used for plug-in and vertical amplifier heaters
*SN 6580 up  Fused
|-style="background-color:#ffffff;"
| SN 3763 up 
*Used for plug-in and vertical amplifier heaters
*Minor design changes from earlier SN
<!-- End Section -->
<!-- Start section -->
|-
! rowspan="2"| Vertical amplifier
grid/plate line fuses
| SN up to 3762: No Fuse
| rowspan="2" |  Fused
|-
| SN 3763 up: Added F1210, F1260, F1285
<!-- End Section -->
<!-- Start section -->
|-style="background-color:#ffffff;"
! rowspan="2"| Delay Relay
| rowspan="2"|  [[6NO45]]
*Heater power from unregulated 18 V DC
* 33 Ω dropping resistor.
| SN up to 9179
*[[6NO45]]
*Heater power from unregulated 18 V DC
* 33 Ω dropping resistor.
|-style="background-color:#ffffff;"
| SN 9180 up
*[[18NO30]]
*Heater power from unregulated 18 V DC
|-
<!-- End Section -->
<!-- Start section -->
|-
! Trace Rotation
| Not present
| SN 9000 up: Added trace rotation
|-
<!-- End Section -->
<!-- Start section -->
|-style="background-color:#ffffff;"
! Final vertical power amp
|  [[6939]]/AX193/7699 dual tetrode
| 2 × [[7788]] Pentode
|-
<!-- End Section -->
<!-- Start section -->
|-
! Power supply Mod
| None
| SN 9250 up: Main relay K601-4 relocated [http://web.archive.org/web/20170727004536/http://www.reprise.com/host/tektronix/reference/581_relay.asp  Details]
|-
<!-- End Section -->
! colspan="3" |SN Range not applicable for rack-mount models
|-
|}


==Prices==
==Prices==
{| class="wikitable"
{| class="wikitable"
|-
|-
| &nbsp;
| colspan="2" |  &nbsp;
| colspan="2" align="center" | 585
| colspan="2" align="center" | 585
| colspan="3" align="center" | 585A
| colspan="4" align="center" | 585A
|-
|-
! Year
! colspan="2" | Year
! 1959
! 1959
! 1962
! 1962
! 1963
! 1963
! 1965
! 1965
! 1971
! 1969
! 1971*
|-
|-
! Catalog price, mainframe only
! rowspan="2"| mainframe only
| catalog
|align=right|  $1,675
|align=right|  $1,675
|align=right|  $1,725
|align=right|  $1,725
|align=right|  $1,725
|align=right|  $1,725
|align=right|  $1,725
|align=right|  $1,725
|align=right|  $2,400
|align=right|  $1,800
|align=right|  $3,325
|-
|-
! 2020 value
| 2020''**''
|align=right| $14,890
|align=right| $14,890
|align=right| $14,780
|align=right| $14,780
|align=right| $14,580
|align=right| $14,580
|align=right| $14,170
|align=right| $14,170
|align=right| $12,690
|align=right| $15,330
|align=right| $15,330
|-
|-
! Catalog price with [[80]]+[[P80]]
! rowspan="2"| mainframe+[[80]]+[[P80]]
| catalog
|align=right|  $1,825
|align=right|  $1,825
|align=right|  $1,875
|align=right|  $1,875
|align=right|
|align=right| $1,975
|align=right|
|align=right|
|-
|-
! 2020 value
| 2020''**''
|align=right| $16,220
|align=right| $16,220
|align=right| $16,060
|align=right| $16,060
|align=right|  
|align=right| $16,700
|align=right|
|-
|align=right|
! rowspan="2"| mainframe+[[82]]
| catalog
|
|
|
|align=right|  $2,375
|align=right|  $2,575
|align=right|  $3,325
|-
| 2020''**''
|
|
|
|align=right| $19,500
|align=right| $18,150
|align=right| $21,240
|-
!  rowspan="2"| mainframe+[[86]]+[[P6008]]
| catalog
|
|
|
|align=right|  $2,075
|align=right|  $2,185
|
|-
| 2020''**''
|
|
|
|align=right| $17,040
|align=right| $15,400
|
|}
|}
:''* "limited demand" instrument''
:''** original list price corrected for inflation''


==Pictures==
==Pictures==
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Tek-585-82.jpg          | 585 with [[82|Type 82 plug-in]]
Tek-585-82.jpg          | 585 with [[82|Type 82 plug-in]]
Tek 585 with 82.jpg      | 585 with [[82|Type 82 plug-in]]
Tek 585 with 82.jpg      | 585 with [[82|Type 82 plug-in]]
Tek 585 non A Field Modification 040-275 label.jpg | Front panel label indicating Field Modification 040-275 is applied
</gallery>
===585 non-A Internals===
<gallery>
Tek585-bottom.jpg        | 585 bottom view (with [[81|Type 81 Adapter]] and [[CA|Type CA plug-in]])
Tek585-bottom.jpg        | 585 bottom view (with [[81|Type 81 Adapter]] and [[CA|Type CA plug-in]])
Tek585-dl-driver-1.jpg  | Distributed delay line driver amplifier
Tek585-dl-driver-1.jpg  | Distributed delay line driver amplifier
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Tek 585a trace.jpg
Tek 585a trace.jpg
585a_front.jpg|585A with [[82]]
585a_front.jpg|585A with [[82]]
585a_trig.jpg|585A trigger circuit
Tek 585 upgraded to 585a.jpg|585 with TRIGGER SOURCE switch upgraded to 585A design
585a_trig_td2.jpg|White plastic clip holds tunnel diode for triggering
585a_door_open.jpg|Inside view shows regulator tubes
585a_dist_vert amp.jpg|Distributed vertical amplifier
T580_CRT.JPG|[[T581]]0P31 distributed deflection plates
Wellenkino 585a 2.jpg
Wellenkino 585a 2.jpg
Wellenkino 585A.jpg
Wellenkino 585A.jpg
585a_delay1.jpg|585A delay line
585_delay2.jpg|585A delay line
585_delay3.jpg|585A delay line
Tek 585a sine trace.jpg
Tek 585a sine trace.jpg
Tek 585a square trace.jpg
Tek 585a square trace.jpg
Tek 585 upgraded to 585a.jpg|585 with TRIGGER SOURCE switch upgraded to 585A design
Tek 585a right internal on cart.jpg|585A on cart
Tek 585a with 81a and hickok plugin.jpg|585A with [[81|81A]] and Hickok plug-in
Tek 585a with 81a and hickok plugin.jpg|585A with [[81|81A]] and Hickok plug-in
Tek 585a handbook.jpg
Tek 585a handbook.jpg
</gallery>
===585A Internals===
<gallery>
Tek 585a right internal on cart.jpg|585A on cart
585a_delay1.jpg|585A delay line
585_delay2.jpg|585A delay line
585_delay3.jpg|585A delay line
585a_trig.jpg|585A trigger circuit
585a_trig_td2.jpg|White plastic clip holds tunnel diode for triggering
585a_door_open.jpg|Inside view shows regulator tubes
585a_dist_vert amp.jpg|Distributed vertical amplifier
T580_CRT.JPG|[[T581]]0P31 distributed deflection plates
Tek_154-0479-00-dDePlates.jpeg | [[T581]]0P31 distributed deflection plates
Tek 58x direct crt.png|Direct Connection to CRT (from 1964 Service Scope)
Tek 58x direct crt.png|Direct Connection to CRT (from 1964 Service Scope)
</gallery>
</gallery>
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<gallery>
<gallery>
Rm 585a.jpg|RM-585A
Rm 585a.jpg|RM-585A
Tek_RM585A-Front.jpeg | RM585A - ALT/DLYD' Trigger
Tek_RM585A-Back.jpeg | RM585A - Rear
</gallery>
===RM585A Internals===
<gallery>
Tek_RM585A_Int_LHSjpeg.jpeg | RM585A Internal LHS
Tek_RM585A_Int_Underside.jpeg | RM585A Internal underside
Tek_RM585A_Int_Underside-TimeBaseOpen.jpeg | RM585A Internal Underside - Timebase  door open
Tek_RM585A_Int_Top-Dline-open.jpeg| RM585A Top - Internal-  Delay line door open
Tek_RM585A_Int_Top.jpeg | RM585A - Internal top
Tek_RM585A_Int_RHS.jpeg | RM585A Internal RHS
Tek_RM585A_Int_HV.jpeg | RM585A Internal HV Section
Tek_RM585A_Int_Rear.jpeg | RM585A Internal - Rear
Tek_585A_VOutput-Tubes.jpeg | RM585A Internal - Vamp - Output [[7788]] pair
RM585A_12.6V-Recrifier.jpeg | 12.6 V rail silicon diode rectifier with fuse
RM585A_T44-Trigger-Transformer.jpeg | T44 - Trigger coupling transformer (Tunnel diode trigger)
RM585A_12.6V-regulator.jpeg | 12.6 V rail regulator transistors
RM585A_18V-delayrelay.jpeg | Delay relay 18NO30T
Tek_585A_Trigger-Amp-transistor.jpeg| Trigger amplifier transistor 2N2048
Tek_585A_Vamp-Plate-Line-Termination.jpeg| Plate line termination (post deflection plates)
Tek_585A_T1046-transformer.jpeg | T1046 toroid transformer in V-amp, used as phase correction/common mode choke
Tek_585A_Grid_Line.jpeg | Tek 585A V-amp grid line (Delay Line driver stage)
Tek_585A_Plate_Line.jpeg | Tek 585A plate line  (partial, delay Line driver stage)
Tek_585A_Tunnel-trig.jpeg | Tunnel diode in A-trigger (closeup)
</gallery>
</gallery>




[[Category:580 series scopes]]
[[Category:580 series scopes]]
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