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585: Difference between revisions
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[[introduced_in_1959|1959]] and made through the 1960's. | [[introduced_in_1959|1959]] and made through the 1960's. | ||
== Plug-in Interface == | ==Specifications== | ||
[[Category:Specifications needed]] ''please add'' | |||
==Internals== | |||
=== 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 | ||
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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. | ||
== Trigger Circuit == | === Trigger Circuit === | ||
The original 585 (up to serial number 1070) has an "A" trigger circuit that has a differential | The original 585 (up to serial number 1070) has an "A" trigger circuit that has a differential | ||
trigger amplifier made of a pair of [[6EW6]] miniature pentodes, followed by a Schmitt trigger | trigger amplifier made of a pair of [[6EW6]] miniature pentodes, followed by a Schmitt trigger | ||
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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 a [[distributed amplifier]] for vertical | ||
deflection. Unlike the other 500-series scopes, the 585 uses a CRT with distributed vertical | deflection. 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. | deflection plates, the [[T581]], enabling it to have both high sensitivity and fast risetime. | ||
Total CRT 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. | ||
== Rackmount Versions == | === Rackmount Versions === | ||
Rackmount versions were also made, the RM585 and RM585A. | Rackmount versions were also made, the RM585 and RM585A. | ||
==Pictures== | ==Pictures== | ||