39,681
edits
1A1: Difference between revisions
m
typo fixed
No edit summary |
m (typo fixed) |
||
| (21 intermediate revisions by 4 users not shown) | |||
| Line 1: | Line 1: | ||
{{Plugin Sidebar | {{Plugin Sidebar | ||
|manufacturer=Tektronix | |||
summary=50 MHz dual channel amplifier| | |series=500-series scopes | ||
image= | |type=1A1 | ||
caption=1A1 front view| | |summary=50 MHz dual channel amplifier | ||
introduced=1964 | | |image=Tek 1A1 front.jpg | ||
discontinued=1975 | | |caption=1A1 front view | ||
|introduced=1964 | |||
manuals= | |discontinued=1975 | ||
* [ | |designers=Ron Olson | ||
* [ | |manuals= | ||
* [[Media:070-378.pdf|Tektronix 1A1 Manual (early)]] (bad-OCR) | |||
* [ | * [[Media:070-0885-00.pdf|Tektronix 1A1 Manual (late)]] (bad-OCR) | ||
* [[Media:tek_1a1_field_cal_proc.pdf|Tektronix 1A1 Field Recalibration Procedure]] (OCR) | |||
* [[Media:tek_1a1_sn20000up_german_short_version.pdf|Tektronix 1A1 Manual SN20000-up German Short Version]] (bad-OCR) | |||
* [[Media:Tek type 1a1 cal outline.pdf|Tektronix 1A1 Calibration Outline]] (OCR) | |||
* [[Media:Tek 1A1 FET mod.pdf|Modification to replace nuvistors with FETs]] | |||
* [ | <!-- | ||
* [ | * [https://w140.com/mmm/tek-1a1-early.pdf Tektronix 1A1 Manual (early)] | ||
* [ | * [https://w140.com/mmm/tek-1a1-late.pdf Tektronix 1A1 Manual (late)] | ||
* [ | * [http://w140.com/tek_fcp/tek_type_1a1_factory_cal_proc.pdf Tektronix 1A1 Field Recalibration Procedure] | ||
* [https://w140.com/Tektronix_1A1_SN20000up_german_short_version_300dpi.pdf Tektronix 1A1 Manual SN20000-up German Short Version] | |||
--> | |||
}} | }} | ||
The '''Tektronix Type 1A1''' plug-in for the [[500-series scopes]] has two channels | The '''Tektronix Type 1A1''' plug-in for the [[500-series scopes]] has two channels and a −3 dB point of 50 MHz at 50 mV/Div, 28 MHz at 5 mV/Div, | ||
and a | and 2 Hz to 15 MHz at 500 μV/Div when channels 1 and 2 are cascaded. It was designed by [[Ron Olson]]. | ||
and 2 Hz to 15 MHz at 500 μV/Div when channels 1 and 2 are cascaded. | |||
There were three distinct versions of 1A1. | There were three distinct versions of 1A1. | ||
* The first version, from 1964 to 1966, has a [[Nuvistor]] front-end, and [[rotary_input_switch|rotary input switches]] that were concentric with the [[BNC]] jacks. The knobs to invert the input channels are concentric with the vertical position knobs. | * The first version, from 1964 to 1966, has a [[Nuvistor]] front-end, and [[rotary_input_switch|rotary input switches]] that were concentric with the [[BNC]] jacks. The knobs to invert the input channels are concentric with the vertical position knobs. | ||
* The second version, from 1966 to ??? has fluted round V/cm knobs, and lever switches. The channel inversion control is an organ-style pull-push knob. | * The second version, from 1966 to ??? has fluted round V/cm knobs, and lever switches. The channel inversion control is an organ-style pull-push knob. The nuvistors are mounted under a thermal cover on a sub-chassis with rubber stand-offs. | ||
* The third model, from ??? until the end has four-sided V/cm knobs and a FET front-end. | * The third model, from ??? until the end has four-sided V/cm knobs and a FET front-end. | ||
Type 1A1 uses the "ALT SWEEP SLAVE PULSE" signal that is sent by scopes on pin 7 of the plug-in connector. | Type 1A1 uses the [[500_Series_plug-in_interface|"ALT SWEEP SLAVE PULSE" signal]] that is sent by scopes on pin 7 of the plug-in connector. | ||
In a Type [[547]] mainframe, this signal allows channel 1 to be displayed using the "A" timebase | In a Type [[547]] mainframe, this signal allows channel 1 to be displayed using the "A" timebase and channel 2 using the "B" timebase. | ||
and channel 2 using the "B" timebase. | |||
This is useful, for example, to view the IF and AF of a radio receiver at the same time. | This is useful, for example, to view the IF and AF of a radio receiver at the same time. | ||
Even after the front-end transitioned from Nuvistors to FETs, the output amplifier continued to use Nuvistors. | Even after the front-end transitioned from Nuvistors to FETs, the output amplifier continued to use Nuvistors. | ||
Type 1A1 has an External Trigger output for mainframes prior to the [[547]] that don't support plug-in triggering, and supplies the trigger system on [[500 Series plug-in interface|pins 4/5 of the mainframe interface]]. | Type 1A1 has an External Trigger output for mainframes prior to the [[547]] that don't support plug-in triggering, and supplies the trigger system on [[500 Series plug-in interface|pins 4/5 of the mainframe interface]]. It also has a ×10 amplified output from channel 1 that can be cascaded into the channel 2 input for 500 μV/Div sensitivity at reduced bandwidth (15 MHz). | ||
Types 1A1 and [[1A2]] were [[introduced in 1964|introduced together in 1964]], | Types 1A1 and [[1A2]] were [[introduced in 1964|introduced together in 1964]], the former for high-end use, the latter as an upgrade/replacement for [[CA|Type CA]]. | ||
the former for high-end use, the latter as an upgrade/replacement for [[CA|Type CA]]. | |||
Both remained available until the [[500-series scopes|500-series scope line]] was discontinued. | Both remained available until the [[500-series scopes|500-series scope line]] was discontinued. | ||
| Line 43: | Line 46: | ||
The 1A1 may have evolved from the [[J|Type J]], which never went into production. | The 1A1 may have evolved from the [[J|Type J]], which never went into production. | ||
{{BeginSpecs}} | |||
{{Spec | Bandwidth | 50 MHz @ 50 mV/Div and up (in fast mainframes), 28 MHz @ 5 mV/Div, 15 MHz with cascaded channels (~0.5 mV/Div) }} | |||
{{Spec | Rise time | 7 ns @ 50 mV/Div and up (in fast mainframes), 13 ns @ 5 mV/Div, 24 ns with cascaded channels (~0.5 mV/Div) }} | |||
{{Spec | Deflection | 5 mV/Div to 20 V/Div, 1−2−5 }} | |||
{{Spec | Max. input | 600 V DC + peak AC }} | |||
{{Spec | Input impedance | 1 MΩ // 15 pF }} | |||
{{Spec | Modes | Ch 1, Ch 2, ALT, CHOP, ADD }} | |||
{{EndSpecs}} | |||
==Links== | ==Links== | ||
* [http://www.amplifier.cd/Test_Equipment/Tektronix/Tektronix_other/1A1.html 1A1 @ amplifier.cd] | * [http://www.amplifier.cd/Test_Equipment/Tektronix/Tektronix_other/1A1.html 1A1 @ amplifier.cd] | ||
{{Documents|Link=1A1}} | |||
==Pictures== | ==Pictures== | ||
<gallery> | <gallery> | ||
Tek_1A1_Early_Front.jpeg | 1A1 SN121 | |||
Tek 1a1 early style.jpg|Early 1A1 | Tek 1a1 early style.jpg|Early 1A1 | ||
Tek 1A1 front.jpg | Second 1A1 version | |||
dual_1A1_2.JPG|left: Nuvistor right: FET | dual_1A1_2.JPG|left: Nuvistor right: FET | ||
dual_1A1_1.JPG|left: Nuvistor right: FET | dual_1A1_1.JPG|left: Nuvistor right: FET | ||
dual_1A1.JPG|left: Nuvistor right: FET | dual_1A1.JPG|left: Nuvistor right: FET | ||
1A1 Nuvistor mount 1.jpg | Nuvistors under thermal cover, on shock-mounted sub-chassis | |||
1A1 Nuvistor mount 2.jpg | Nuvistor cover and tubes unplugged | |||
1A1 Nuvistor mount 3.jpg | Nuvistor cover and tubes, bottom | |||
1a1_frontend.png|Early 1A1 front end | 1a1_frontend.png|Early 1A1 front end | ||
Tek 1a1 late output amp.png|Late 1A1 Output Amp | Tek 1a1 late output amp.png|Late 1A1 Output Amp | ||
| Line 63: | Line 78: | ||
Tek 1a1 black.jpg|Black 1A1 | Tek 1a1 black.jpg|Black 1A1 | ||
Tek 1a1 latest guernsey.jpg|Latest version 1A1. Photo courtesy of Dan Wilson (Hideaway Studio). | Tek 1a1 latest guernsey.jpg|Latest version 1A1. Photo courtesy of Dan Wilson (Hideaway Studio). | ||
Tek_1A1_Top.jpeg | 1A1 - First Version - Top | |||
Tek_1A1_Underside.jpeg | 1A1 - First Version - Underside | |||
Tek_1A1_RHS.jpeg | 1A1 - First Version - RHS | |||
Tek_1A1_LHS.jpeg | 1A1 - First Version - LHS | |||
Tek_1A1_FETFront-CH1.jpeg | Input FET board CH1 | |||
Tek_1A1_FETFront-CH2.jpeg | Input FET board CH2 | |||
Tek 1a1 front3.jpeg | |||
</gallery> | </gallery> | ||
==Components== | |||
{{Parts|1A1}} | |||
[[Category:500 series plugins]] | [[Category:500 series plugins]] | ||