585: Difference between revisions

1,938 bytes added ,  2 June 2020
585 Series comparison table
m (Pics)
(585 Series comparison table)
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==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.
   
{| 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 disconnect diodes
<!-- End section -->
 
<!-- Start section -->
|-style="background-color:#ffffff;"
! rowspan="2"| 12.6V Power
| SN Up-to 3762
*Used for plug-in
*Selenium rectifier
| rowspan="2" |
*Used for lug-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
grind/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 18V DC
* 33Ω dropping resistor.
| SN Up-to 9179
*6NO45
*Heater power from unregulated 18V DC
 
* 33Ω dropping resistor.
|-style="background-color:#ffffff;"
| SN 9180-Up
*18NO30
* Heater power directly from  18V DC
|-
<!-- End Section -->
 
<!-- Start section -->
|-
! Trace Rotation
| Not present
| SN 9000-Up - Added trace rotation
|-
<!-- End Section -->
 
<!-- Start section -->
|-style="background-color:#ffffff;"
! Final vertial power amp
|  [[6939]]/AX193/7699 dual tetrode
| 2 X [[7788]] Pentode
|-
<!-- End Section -->
! colspan="3" |SN Range not applicable for rackmount models
|-
|}
 
==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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