Talk:576: Difference between revisions

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{{BeginSpecs}}
I would suggest to move the detailed specification tables to a separate page and only present a compact specification here that is more in line with other pages on Tekwiki. The article otherwise seems overloaded with data. [[User:Gregor|Gregor]] ([[User talk:Gregor|talk]]) 20:17, 27 February 2021 (MST)
===Collector Supply===
----
{| class="wikitable"
I agree. The detailed specification tables are great, but they make the page too long when they're inline.
! colspan="2" | Characteristic
A couple of possible ideas:
! colspan="4" | Performance
# Move the detailed specs to a different page, as you suggested.
|-
# Possible refinement: Create a new subpage, like the "Repairs" page, for "Specs".
! colspan="2" | Sweep Modes
I suspect that a lot of Tekwiki viewers aren't even aware of the subpages so, if we chose to go that route, we might need link from the instrument page to the Specs subpage to ensure the relevance of the Specs subpage.
| colspan="4" | Normal mode: AC (at line frequency); positive-or negative-going full wave rectified AC.
There are some clumsy/confusing aspects of the subpages, though, or at least how we are currently using them.
DC mode: positive or negative DC.
Lots of pages have a "Repairs" subpage where it doesn't make sense, e.g., "Howard Vollum/Repairs".
|-
I'm sure we could employ/invent some sort of multiple inheritance class/templating scheme for the pages,
! colspan="2" | DC Mode Ripple
but one of the goals is to keep the wiki editable by people who aren't Mediawiki experts.
| colspan="4" | No-load: 2% or less of voltage, or 0.1% or less of full range voltage.
The similarity in look and the applicability of documentation from Wikipedia to Tekwiki is an asset.
|-
I'm in favor of having a Specs subpage and I'm not going to lose sleep over the fact that Howard Vollum will
! colspan="2" | Voltages Accuracy
get a Specs page, as well. (But if we could fix that without burdening the casual user with extra complexity,
| colspan="4" | Peak open circuit voltages on all ranges within +35% and -5%.
it would be nice.)
|-
[[User:Kurt|Kurt]] ([[User talk:Kurt|talk]]) 05:35, 28 February 2021 (PST)
| style="text-align: right;" |  
| style="text-align: right;" | '''Voltage Range'''
| style="text-align: center;" | '''15 V'''
| style="text-align: center;" | '''75 V'''
| style="text-align: center;" | '''350 V'''
| style="text-align: center;" | '''1500 V'''
|-
|
| Maximum Peak Current (Normal Mode)¹
| style="text-align: center;" | 10 A
| style="text-align: center;" | 2 A
| style="text-align: center;" | 0.5 A
| style="text-align: center;" | 0.1 A
|-
|
| Peak Current (Step Generator in Pulsed Steps Mode)
| style="text-align: center;" | At least 20 A
| style="text-align: center;" | At least 4 A
| style="text-align: center;" | At least 1 A
| style="text-align: center;" | At least 0.2 A
|-
|
| Minimum Series Resistance
| style="text-align: center;" | 0.3 Ω
| style="text-align: center;" | 6.5 Ω
| style="text-align: center;" | 140 Ω
| style="text-align: center;" | 3 kΩ
|-
|
| Maximum Series Resistance
| style="text-align: center;" | 65 kΩ
| style="text-align: center;" | 1.4 MΩ
| style="text-align: center;" | 6.5 MΩ
| style="text-align: center;" | 6.5 MΩ
|-
|
| Series Resistances Available
| colspan="4" | 0.3 Ω, 1.4 Ω, 6.5 Ω, 30 Ω, 140 Ω, 650 Ω, 3 kΩ, 14 kΩ, 65 kΩ, 300 kΩ, 1.4 MΩ, and 6.5 MΩ, all within 5% or 0.1 Ω.
|-
|
| Peak Power Watts Settings
| colspan="4" | 0.1 W, 0.5 W, 2.2 W, l0 W, 50 W and 220 W. Derived from nominal peak open circuit collector voltages and nominal series resistance values at nominal line voltage.
|-
|
| Safety Interlock
| colspan="4" | When MAX PEAK VOLTS switch is set to either 75, 350 or 1500, a protective box must be in place over test terminals and its lid closed before voltage can be applied. Amber light on indicates interlock is open & Red light on indicates voltage is being applied to test terminals.
|-
|
| Looping Compensation
| colspan="4" | Cancels stray capacitance between collector test terminal and ground in Standard Test Fixture and all Standard Test Fixture Accessories.
|}


===Step Generator===
----
{| class="wikitable"
Kurt, I am not opposed to the extra Specs subpage at all, I just wonder if its really necessary. To me the beauty of Tekwiki is the overview, comparison, and context that is added to the information available in Tektronix manuals. Replicating pages of information 1:1 from the manual to me personally does not provide extra benefit. What would be beneficial would be standardized specs for categories (e.g. each scope should have a bandwidth spec and it should be the nth line of the Spec table) but I see that this is probably hard to do consistently for all categories, and there will be many exceptions. As a side note and compliment, I really enjoy the freedom here compared to other collector portals (e.g. Radiomuseum.org) wich are very restrictive, so maybe my idea wouldn't be that smart even from this perspective. [[User:Gregor|Gregor]] ([[User talk:Gregor|talk]]) 18:17, 28 February 2021 (MST)
! colspan="2" | Accuracy (Current or Voltage Steps, lncluding Offset)
:I'm not happy with a separate specs page either. The idea (mine anyway) was to have some key specs at a glance high up in the article – after the short description but before any lengthy waffling.  Now admittedly on certain models the space table has suffered from overload of less relevant facts, a discussion I had elsewhere (originally shipped accessories may be of interest to some but don't deserve the limelight spot).<br/>I would propose to rename the section "Key Specifications" (can be done centrally in the template) and move excess content down on the page (or into a separate subpage if you really feel like that – most would remain pretty empty for some time to come, though). <br />BTW, the longer-term intent of the "Spec" template was to allow generating tables across devices automatically, at least for consistently named parameters like Bandwidth. Semantic MediaWiki can do that with a little work in the template, but I have found it a bit of a pain to maintain over releases, it's a bit of a heavyweight "plugin". Haven't researched simpler alternatives yet, however. (Oh and AFAIK there are no anal-retentive old Swiss guys here, so no danger of TW becoming RM II.  Otherwise you would have seen mandatory sections like "case style" and "sound reproduction" already :-) --[[User:Peter|Peter]] ([[User talk:Peter|talk]]) 00:49, 1 March 2021 (PST) (PS. Howard Vollum has no Repairs sub-page – the link is red. I'll add one when I find out how to repair him, he's been sorely missed.)
|-
:: Ok, let's not make separate Specs pages for all the instruments. And I agree with pointing to info in manuals rather than replicating it, except for a brief specs table in the page. In the specific case of this 576 page, let's move the big specs tables to a separate page and link to it from the 576 page. [[User:Kurt|Kurt]] ([[User talk:Kurt|talk]]) 10:33, 1 March 2021 (PST)
|
:::Mission accomplished!  [[User:Gregor|Gregor]] ([[User talk:Gregor|talk]]) 23:23, 1 March 2021 (MST)
| Incremental Accuracy
::::Excellent. [[User:Kurt|Kurt]] ([[User talk:Kurt|talk]]) 05:08, 2 March 2021 (PST)
| Within 5% between any two steps, without .1 X STEP MULT button pressed; within 10% with .1 X STEP MUL T button pressed.
|-
|
| Absolute Accuracy
| Within 2% of total output, including any amount of offset, or 1% of AMPLITUDE switch setting, whichever is greater.
|-
! colspan="2" | Step (Current or Voltage) Amplitudes
| One times or 0.1 times (with .1 X STEP MUL T button pressed) the AMPLITUDE switch setting.
|-
! colspan="2" | OFFSET MULT Control Range
| Continuously variable from 0 to 10 times AMPLITUDE switch setting, either aiding or opposing the step generator polarity.
|-
! colspan="2" | Current Mode
|
|-
|
| AMPLITUDE Switch Range
| 200 mA to 50 nA, in 1-2-5 sequence.
|-
|
| Maximum Current (Steps and Aiding Offset)²
| 20 times AMPLITUDE switch setting, except 10 times switch setting when switch is set to 200 mA, and 15 times switch setting when the switch is set to 100 mA.
|-
|
| Maximum Voltage (Steps and Aiding Offset)
| At least 10 V.
|-
|
| Maximum Opposing Offset Current
| Whichever is less: 10 times AMPLITUDE switch setting, or between 10 mA and 20 mA.
|-
|
| Maximum Opposing Voltage
| Between 1 V and 3 V.
|-
|
| Ripple Plus Noise
| 0.5% or less of AMPLITUDE switch setting or 1 nA, peak to peak.
|-
! colspan="2" | Voltage Mode
|
|-
|
| AMPLITUDE Switch Range
| 50 mV to 2 V, in 1-2-5 sequence.
|-
|
| Maximum Voltage (Steps and Aiding Offset)
| 20 times AMPLITUDE switch setting.
|-
|
| Maximum Current (Steps and Aiding Offset)
| At least 2 A at 10 V or less, decreasing linearly to 10 mA at 40 V.
|-
|
| Short Circuit Current Limiting (Steps and Aiding Offset)
| 20 mA, 100 mA, 500 mA, +100%-0%; 2 A +50%-0%; as selected by CURRENT LIMIT switch.
|-
|
| Maximum Opposing Offset Voltage
| 10 times AMPLITUDE switch setting.
|-
|
| Maximum Opposing Current
| Limited at between 5 mA and 20 mA
|-
|
| Ripple Plus Noise
| 0.5% or less of AMPLITUDE switch setting, or 2 mV, peak to peak.
|-
! colspan="2" | Step Rates
| (Front panel RATE button labels in parentheses.) 1 times (.5X), 2 times (NORM) and 4 times (2X) line frequency. Steps occur at zero collector voltage when .5X or NORM RATE buttons are pressed. and also at peak voltage when 2X RATE button is pressed. Steps occur at collector voltage peak and at normal rate when .5X and 2X RATE buttons are pressed together.
|-
! colspan="2" | Pulsed Steps
| Pulsed steps 80 μS wide within +20%, -5% or 300 μS wide within +5%, -15% produced whenever one of the PULSED STEPS buttons is pressed. Pulsed steps can be produced only at normal and .5 times normal rates. Collector Supply mode automatically becomes DC when either the 300 μS or 80 μS PULSED STEPS button is pressed unless POLARITY switch is set to AC. If the 300 μS and 80 μS PULSED STEPS buttons are pressed together, 300 μS pulsed steps are produced, but collector supply mode does not change.
|-
! colspan="2" | Steps and Offset Polarity
| Corresponds with collector supply polarity (positive going when POLARITY switch is set to AC) when the POLARITY INVERT button is released. Is opposite collector supply polarity (negative-going in AC) when either the POLARITY INVERT button is pressed or the Lead Selector switch is set to BASE GROUNDED. If Lead Selector switch is set to BASE GROUNDED, POLARITY INVERT button has no effect on steps and offset polarity.
|-
! colspan="2" | Step Families
| Repetitive families of characteristic curves generated with REP STEP FAMILY button pressed. Single family of characteristic curves generated each time SINGLE STEP FAMILY button is pressed.
|-
! colspan="2" | Number of Steps
| Ranges from 1 to 10 as selected by the NUMBER OF STEPS switch. For zero steps, press SINGLE STEP FAMILY button.
|}
 
===Display Amplifiers===
{| class="wikitable"
! colspan="6" | Display Accuracies (% of Highest On-Screen Value)
|-
| colspan="2" |
| colspan="3" | Display magnified (DISPLAY OFFSET Selector switch set to either VERT X10 or HORIZ X10) and offset between
| rowspan="2" style="text-align: center;" | Display Unmagnified
|-
! colspan="2" | Normal and DC Collector Supply Modes
| style="text-align: center;" | 100 and 40 divisions
| style="text-align: center;" | 35 and 15 divisions
| style="text-align: center;" | 10 and 0 divisions
|-
|
| Vertical Collector Current
| style="text-align: center;" | 2%
| style="text-align: center;" | 3%
| style="text-align: center;" | 4%
| style="text-align: center;" | 3%
|-
|
| External Vertical (Through Interface)
| style="text-align: center;" | 2%
| style="text-align: center;" | 3%
| style="text-align: center;" | 4%
| style="text-align: center;" | 3%
|-
|
| Horizontal Collector Volts
| style="text-align: center;" | 2%
| style="text-align: center;" | 3%
| style="text-align: center;" | 4%
| style="text-align: center;" | 3%
|-
|
| Horizontal Base Volts
| style="text-align: center;" | 2%
| style="text-align: center;" | 3%
| style="text-align: center;" | 4%
| style="text-align: center;" | 3%
|-
|
| External Horizontal (Through Interface)
| style="text-align: center;" | 2%
| style="text-align: center;" | 3%
| style="text-align: center;" | 4%
| style="text-align: center;" | 3%
|-
! colspan="2" | Leakage Collector Supply Mode
| colspan="4" |
|-
|
| Vertical Emitter Current (VERTICAL Switch set between 10 nA and 2 mA)
| style="text-align: center;" | 2% ±1 nA
| style="text-align: center;" | 3% ±1 nA
| style="text-align: center;" | 4% ±1 nA
| style="text-align: center;" | 3% ±1 nA
|-
|
| Vertical Emitter Current (VERTICAL Switch set to 5 nA, 2 nA or 1 nA)
| colspan="3" style="text-align: center;" | Not Applicable
| style="text-align: center;" | 5% ±1 nA
|-
|
| Horizontal Collector or Base Volts VERTICAL switch set to:
| colspan="4" |
|-
|
| 1 μA or more
| style="text-align: center;" | 2%
| style="text-align: center;" | 3%
| style="text-align: center;" | 4%
| style="text-align: center;" | 5%
|-
|
| 100 nA, 10 nA or 1 nA
| colspan="3" style="text-align: center;" | Not Applicable
| style="text-align: center;" | 3% plus 0.025 V for each vertical division  of deflection on the CRT
|-
|
| 500 nA, 50 nA or 5 nA
| colspan="3" style="text-align: center;" | Not Applicable
| style="text-align: center;" | 3% plus 0.125 V for each vertical division of deflection on the CRT
|-
|
| 200 nA, 20 nA or 2 nA
| colspan="3" style="text-align: center;" | Not Applicable
| style="text-align: center;" | 3% plus 0.050 V for each vertical division of deflection of the CRT
|-
! colspan="2" | Step Generator Display
| colspan="4" |
|-
|
| Vertical Step Generator
| style="text-align: center;" | 3%
| style="text-align: center;" | 4%
| style="text-align: center;" | 5%
| style="text-align: center;" | 4%
|-
|
| Horizontal Step Generator
| style="text-align: center;" | 3%
| style="text-align: center;" | 4%
| style="text-align: center;" | 5%
| style="text-align: center;" | 4%
|-
! colspan="2" | Deflection Factors
|
|
|
|
|-
|
| Vertical Collector Current
| colspan="4" style="text-align: center;" | 1 μA/division to 2 A/division in 1-2-5 sequence.
|-
|
| Vertical Emitter Current
| colspan="4" style="text-align: center;" | 1 nA/division to 2 rnA/division in 1-2-5 sequence.
|-
|
| Vertical Step Generator
| colspan="4" style="text-align: center;" | 1 step/division.
|-
|
| Horizontal Collector Volts
| colspan="4" style="text-align: center;" | 50 mV /division to 200 V /division in 1-2-5 sequence
|-
|
| Horizontal Base Volts
| colspan="4" style="text-align: center;" | 50 mV /division to 2 V/division in 1-2·5 sequence.
|-
|
| Horizontal Base Volts Input Impedance
| colspan="4" style="text-align: center;" | At least 100 MΩ with HORIZONTAL switch set to 50 mV, 100 mV and 200 mV BASE; 1 MΩ within 2% with switch set to .5 V, 1 V and 2V.
|-
|
| Horizontal Step Generator
| colspan="4" style="text-align: center;" | 1 step/division
|-
! colspan="2" | Maximum Displayed Noise
| colspan="4" style="text-align: center;" | 1% or less, or the following depending on setting of MAX PEAK VOLTS switch:
|-
| colspan="2" |
| style="text-align: center;" | 15
| style="text-align: center;" | 75
| style="text-align: center;" | 350
| style="text-align: center;" | 1500
|-
|
| Vertical Collector
| style="text-align: center;" | 1 μA
| style="text-align: center;" | 1 μA
| style="text-align: center;" | 2 μA
| style="text-align: center;" | 5 μA
|-
|
| Vertical Emitter
| style="text-align: center;" | 1 nA
| style="text-align: center;" | 1 nA
| style="text-align: center;" | 2 nA
| style="text-align: center;" | 5 nA
|-
|
| Horizontal Collector
| style="text-align: center;" | 5 mV
| style="text-align: center;" | 5 mV
| style="text-align: center;" | 20 mV
| style="text-align: center;" | 200 mV
|-
|
| Horizontal Base
| style="text-align: center;" | 5 mV
| style="text-align: center;" | 5 mV
| style="text-align: center;" | 5 mV
| style="text-align: center;" | 5 mV
|-
! colspan="2" | Calibration Check
| colspan="4" | With DISPLAY OFFSET Selector switch set to NORM (OFF), spot is deflected 10 divisions both vertically and horizontally within 1.5% whenever the CAL button is pressed.
With DISPLAY OFFSET Selector switch set to X10 MAGNIFIER (either axis) the calibration spot is within 0.5% of zero spot (previously set to CRT graticule center) when CAL button is pressed.
|-
! colspan="2" | Vertical and Horizontal Position Controls
| colspan="4" | Coarse positioning in 5 division increments within 0.1 division; continuous fine positioning over at least 5 divisions for each coarse position.
|-
! colspan="2" | Display Offset
| colspan="4" | Vertical or Horizontal offset of display centerline value up to 10 divisions in 21 half division steps.
|-
! colspan="2" | Display Positioning Accuracy Using POLARITY Switch
| colspan="4" style="text-align: center;" | Spot positioning with change in POLARITY switch setting (using AC position as reference), within 0.1 division of:
|-
| colspan="2" |
| colspan="2" style="text-align: center;" | Vertically
| colspan="2" style="text-align: center;" | Horizontally
|-
|
| style="text-align: right;" | AC
| colspan="2" style="text-align: center;" | Centered
| colspan="2" style="text-align: center;" | Centered
|-
|
| style="text-align: right;" | +(NPN)
| colspan="2" style="text-align: center;" | -5 divisions
| colspan="2" style="text-align: center;" | -5 divisions
|-
|
| style="text-align: right;" | -(PNP)
| colspan="2" style="text-align: center;" | +5 divisions
| colspan="2" style="text-align: center;" | +5 divisions
|}
 
Notes:
<br /> 
¹
<small>
Collector Supply Maximum Continuous Peak Current Operating Time vs Duty Cycle and Ambient Temperature. With the PEAK POWER WATTS at 50 only, the following limitations apply: Maximum continuous operating time at rated current (100% duty cycle) into a short circuit is 20 minutes at 25° C ambient, or 10 minutes at 40° C ambient. Alternatively, duty cycle may be limited to 50% at 25° C ambient or 25% at 40° C ambient. (A normal family of curves for a transistor will produce a duty cycle effect to 50% or less even
if operated continuously.) Over dissipation of the collector supply will temporarily shut it off and turn on the yellow COLLECTOR SUPPLY VOLTAGE DISABLED light. No damage will result.
</small>
<br />
²
<small>
Continuous DC Output vs Time, Temperature and Duty Cycle. 2 A continuous DC output can be achieved for an unlimited period up to 30° C ambient. Between 30° C and 40° C ambient, 2 A continuous DC operation should be limited to 15 minutes or limited to a 50% duty cycle or less. A family of steps (such as 10 steps at 200 mA per step) will automatically reduce the duty cycle to 50% even if generated continuously. Exceeding the rating will temporarily shut off power to the entire instrument but no damage will result.
</small>
{{EndSpecs}}
 
I'm wondering if this is too much for specifications or am I on the right track? [[User:Rellikjm|Rellikjm]] ([[User talk:Rellikjm|talk]]) 14:24, 12 March 2020 (PDT)

Latest revision as of 05:08, 2 March 2021

I would suggest to move the detailed specification tables to a separate page and only present a compact specification here that is more in line with other pages on Tekwiki. The article otherwise seems overloaded with data. Gregor (talk) 20:17, 27 February 2021 (MST)

I agree. The detailed specification tables are great, but they make the page too long when they're inline. A couple of possible ideas:

  1. Move the detailed specs to a different page, as you suggested.
  2. Possible refinement: Create a new subpage, like the "Repairs" page, for "Specs".

I suspect that a lot of Tekwiki viewers aren't even aware of the subpages so, if we chose to go that route, we might need link from the instrument page to the Specs subpage to ensure the relevance of the Specs subpage. There are some clumsy/confusing aspects of the subpages, though, or at least how we are currently using them. Lots of pages have a "Repairs" subpage where it doesn't make sense, e.g., "Howard Vollum/Repairs". I'm sure we could employ/invent some sort of multiple inheritance class/templating scheme for the pages, but one of the goals is to keep the wiki editable by people who aren't Mediawiki experts. The similarity in look and the applicability of documentation from Wikipedia to Tekwiki is an asset. I'm in favor of having a Specs subpage and I'm not going to lose sleep over the fact that Howard Vollum will get a Specs page, as well. (But if we could fix that without burdening the casual user with extra complexity, it would be nice.) Kurt (talk) 05:35, 28 February 2021 (PST)

Kurt, I am not opposed to the extra Specs subpage at all, I just wonder if its really necessary. To me the beauty of Tekwiki is the overview, comparison, and context that is added to the information available in Tektronix manuals. Replicating pages of information 1:1 from the manual to me personally does not provide extra benefit. What would be beneficial would be standardized specs for categories (e.g. each scope should have a bandwidth spec and it should be the nth line of the Spec table) but I see that this is probably hard to do consistently for all categories, and there will be many exceptions. As a side note and compliment, I really enjoy the freedom here compared to other collector portals (e.g. Radiomuseum.org) wich are very restrictive, so maybe my idea wouldn't be that smart even from this perspective. Gregor (talk) 18:17, 28 February 2021 (MST)

I'm not happy with a separate specs page either. The idea (mine anyway) was to have some key specs at a glance high up in the article – after the short description but before any lengthy waffling. Now admittedly on certain models the space table has suffered from overload of less relevant facts, a discussion I had elsewhere (originally shipped accessories may be of interest to some but don't deserve the limelight spot).
I would propose to rename the section "Key Specifications" (can be done centrally in the template) and move excess content down on the page (or into a separate subpage if you really feel like that – most would remain pretty empty for some time to come, though).
BTW, the longer-term intent of the "Spec" template was to allow generating tables across devices automatically, at least for consistently named parameters like Bandwidth. Semantic MediaWiki can do that with a little work in the template, but I have found it a bit of a pain to maintain over releases, it's a bit of a heavyweight "plugin". Haven't researched simpler alternatives yet, however. (Oh and AFAIK there are no anal-retentive old Swiss guys here, so no danger of TW becoming RM II. Otherwise you would have seen mandatory sections like "case style" and "sound reproduction" already :-) --Peter (talk) 00:49, 1 March 2021 (PST) (PS. Howard Vollum has no Repairs sub-page – the link is red. I'll add one when I find out how to repair him, he's been sorely missed.)
Ok, let's not make separate Specs pages for all the instruments. And I agree with pointing to info in manuals rather than replicating it, except for a brief specs table in the page. In the specific case of this 576 page, let's move the big specs tables to a separate page and link to it from the 576 page. Kurt (talk) 10:33, 1 March 2021 (PST)
Mission accomplished! Gregor (talk) 23:23, 1 March 2021 (MST)
Excellent. Kurt (talk) 05:08, 2 March 2021 (PST)
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