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585: Difference between revisions
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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.) | ||
{{ | 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 | 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 | 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 | Like the [[545]], [[551]], and [[555]], the 585 uses two [[distributed amplifier]]s in the 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 | |||
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" | ||
|- | |- | ||
| | |||
| 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 | | 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 | | 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 | | Tek585-top-1.jpg | 585 top view | ||
</gallery> | </gallery> | ||