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manuals= | manuals= | ||
'''R7912''' | '''R7912''' | ||
... | * [[Media:R7912 070-1590-00.pdf|Tektronix R7912 Service Manual (PDF)]] | ||
* [[Media:1350 070-1888-00.pdf|1350 (AKA 067-0679-00) Memory Display Unit for R7912 (PDF)]] | |||
* [[Media:Waveform Digitizing Instruments (R7912).pdf|Waveform Digitizing Instruments (R7912) Brochure (PDF)]] | |||
* [http://w140.com/tek_7912_and_related_digitizer_docs.pdf 7912 and related digitizer documents] | |||
'''7912AD/HB''' | '''7912AD/HB''' | ||
* [[Media:7912ad_theory.pdf | 7912AD Operator's Manual (partial, 57 pages from introduction)]] | * [[Media:7912ad_theory.pdf | 7912AD Operator's Manual (partial, 57 pages from introduction)]] | ||
* [http://w140.com/7912ad_reading_gun_supply.pdf 7912AD Video preamp/Reading gun supply schematics] | * [http://w140.com/7912ad_reading_gun_supply.pdf 7912AD Video preamp/Reading gun supply schematics] | ||
* [http://w140.com/7912ad_writing_gun_supply.pdf 7912AD Z-Axis/HV board schematics] | * [http://w140.com/7912ad_writing_gun_supply.pdf 7912AD Z-Axis/HV board schematics] | ||
* [[Media:070-5077-00.pdf|Tektronix 7912AD Instrument Interfacing Guide (PDF)]] | * [[Media:070-5077-00.pdf|Tektronix 7912AD Instrument Interfacing Guide (PDF)]] | ||
}} | }} | ||
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which would become part of the output signal in the NON STORE mode. | which would become part of the output signal in the NON STORE mode. | ||
The R7912 had a proprietary digital interface. | The R7912 had a proprietary digital interface. | ||
The Tektronix 067-0679-00 Digital Display Controller is an external module that interfaces | A card for interfacing to a DEC PDP-11 was available. | ||
The Tektronix 067-0679-00 aka [[1350]] "Digital Display Controller" or "Memory Display Unit" | |||
is an external module that interfaces the R7912 to X-Y monitors. | |||
Tek also offered configurations with multiple R7912s on a common controller within the WP2000 series. | Tek also offered configurations with multiple R7912s on a common controller within the WP2000 series. | ||
==7912AD and 7912HB== | ==7912AD and 7912HB== | ||
From the '''7912AD''' (1978) on, the instrument had a standard [[GPIB interface]]. | From the '''7912AD''' (1978) on, the instrument had a standard [[GPIB interface]] and could drive X-Y monitors directly. In contrast to the earlier R7912 the readout characters in video mode are now created digitally and directly injected into the video signal. | ||
The 7912AD has 500 MHz bandwidth. It was succeeded by the 750 MHz 7912HB in 1987 (using a [[7A29P]] amplifier). | The 7912AD has 500 MHz bandwidth. It was succeeded by the 750 MHz '''7912HB''' in 1987 (using a [[7A29P]] amplifier). | ||
For the 7912AD and 7912HB, special GPIB-controllable plug-in modules with a 'P' suffix, meaning Programmable, | For the 7912AD and 7912HB, special GPIB-controllable plug-in modules with a 'P' suffix, meaning Programmable, | ||
were available, e.g. [[7A16P]], [[7A29P]] and [[7B90P]]. | were available, e.g. [[7A16P]], [[7A29P]] and [[7B90P]]. | ||
===7912AD Options=== | |||
* Option 4: Change to fast digitize mode. This option trades off scan time with resolution by compressing the scan. The target is written on and read from a 256 x 256 point matrix with a maximum of 14 points stored per vertical scan. This option is achieved by setting the correct jumpers on the A16, A20, A22, A26, A46 boards. | |||
* Option 13: Changes the video output to 625 lines/frame with a 50 Hz field rate (PAL). This option is achieved by setting the correct jumpers on the A20 and A28 boards. | |||
==Internals== | ==Internals== | ||
Three output methods are provided: Video (NTSC or PAL), X-Y-Z low-speed analog, and a [[GPIB interface]]. For video-out Tektronix recommends the [[634|634 monitor]] or a monitor from the 650- and 670-series and a 75 Ω termination. For X-Y-Z analog Tek recommends a 600-series monitor and no specific termination requirement. | Three output methods are provided: Video (NTSC or PAL), X-Y-Z low-speed analog, and a [[GPIB interface]]. For video-out Tektronix recommends the [[634|634 monitor]] or a monitor from the 650- and 670-series and a 75 Ω termination. For X-Y-Z analog Tek recommends a 600-series monitor and no specific termination requirement. | ||
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==Specifications== | ==Specifications== | ||
The Tektronix 7912AD is 19" wide, 7" tall, 27" deep, and weighs 55 pounds. It | The Tektronix 7912AD is 19" wide, 7" tall, 27" deep, and weighs 55 pounds. It consumes 360 watts maximum. | ||
==Literature and Software== | ==Literature and Software== | ||
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* [[670-6466-00]] 7912 AD plug-in interface extender | * [[670-6466-00]] 7912 AD plug-in interface extender | ||
* [[067-0854-00]] Calibration Kit | * [[067-0854-00]] Calibration Kit | ||
* [[067-0679-99]] R7912 Demo Unit | |||
==Pictures== | ==Pictures== | ||
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R7912 2.jpg | R7912 controls | R7912 2.jpg | R7912 controls | ||
R7912 3.jpg | R7912 rear | R7912 3.jpg | R7912 rear | ||
Tek wp2000 2.jpg| | Tek wp2000 2.jpg|067-0679-00 front next to [[608]] monitor | ||
Tek wp2000 3.jpg| | Tek wp2000 3.jpg|067-0679-00 rear next to [[608]] monitor | ||
Tek wp2000 1.jpg| | Tek wp2000 1.jpg|067-0679-00 detail | ||
067-0679-00.jpg |067-0679-00 aka [[1350]] | |||
</gallery> | </gallery> | ||
===7912AD=== | ===7912AD=== | ||
<gallery> | <gallery> | ||
Tek-7912ad.jpg|7912AD front | |||
7912AD_Front.jpg |7912AD front | |||
7912ad.jpg|7912AD |7912AD front | |||
7912AD_Rear.jpg|7912AD rear | |||
Tek7912AD Top.JPG | 7912AD top view, cover removed | |||
7912AD_Top.jpg | 7912AD top view, cover removed | |||
7912AD_Top_detail.jpg| 7912AD top detail with A34 vertical amp | |||
7912AD_Right.jpg|7912AD right | |||
7912AD_Bottom.jpg|7912AD bottom, cover removed | |||
7912ad-block.png | 7912AD block diagram | |||
7912ad tube.gif | 7912AD digitizer tube | 7912ad tube.gif | 7912AD digitizer tube | ||
TEK Tube7912 Pic5.jpg | T7912 tube - read part (left), target (center), write part (right). See [[T7912]] article for more photos. | TEK Tube7912 Pic5.jpg | T7912 tube - read part (left), target (center), write part (right). See [[T7912]] article for more photos. | ||
IMG 20130408 115501.jpg|7912AD TV output on NTSC monitor | IMG 20130408 115501.jpg|7912AD TV output on NTSC monitor | ||
7912AD_FrontPanel.jpg|7912AD Back side of front panel | |||
7912AD_A10_rear.jpg|7912AD A10 rear | |||
7912AD_A10_front.jpg|7912AD A10 front with buttons partially removed to access the [[150-0048-01]] lamps | |||
7912AD_PowerSwitch.jpg |7912AD A12 power button PCB front | |||
7912AD_PowerSwitch_dis2.jpg |7912AD A12 power button disassembled to access the [[150-0048-01]] lamp | |||
Tek7912ad 5156 bot.jpg|7912AD | 7912AD_A12_PowerSwitchRear.jpg| 7912AD A12 power button PCB rear | ||
Tek7912ad 5156 top.jpg|7912AD | 7912AD_A16.jpg | 7912AD A16 Memory Control with [[82S185]] PROMs | ||
Tek7912ad data buffer top.jpg|7912AD data buffer | Tek7912ad 5156 bot.jpg|7912AD A18 Data Memory | ||
Tek7912ad data buffer bot.jpg|7912AD data buffer | Tek7912ad 5156 top.jpg|7912AD A18 Data Memory with [[IM5610]] PROMs | ||
Tek7912ad translator top.jpg|7912AD translator | Tek7912ad data buffer top.jpg|7912AD A20 data buffer | ||
Tek7912ad translator bot.jpg|7912AD translator | Tek7912ad data buffer bot.jpg|7912AD A20 data buffer | ||
Tek7912ad graticule gen top.jpg|7912AD graticule generator | Tek7912ad translator top.jpg|7912AD A22 translator | ||
Tek7912ad graticule gen bot.jpg|7912AD graticule generator | Tek7912ad translator bot.jpg|7912AD A22 translator | ||
Tek7912ad x-y ramp gen top.jpg|7912AD X-Y ramp generator | Tek7912ad graticule gen top.jpg|7912AD A24 graticule generator | ||
Tek7912ad x-y ramp gen bot.jpg|7912AD X-Y ramp generator | Tek7912ad graticule gen bot.jpg|7912AD A24 graticule generator | ||
Tek7912ad video proc top.jpg|7912AD video processor | Tek7912ad x-y ramp gen top.jpg|7912AD A26 X-Y ramp generator | ||
Tek7912ad 4377.jpg|7912AD | Tek7912ad x-y ramp gen bot.jpg|7912AD A26 X-Y ramp generator | ||
Tek7912ad horiz.jpg|7912AD horizontal | Tek7912ad video proc top.jpg|7912AD A28 video processor | ||
Tek7912ad scan amp.jpg|7912AD scan amplifier | Tek7912ad 4377.jpg|7912AD A32 Video preamp | ||
Tek7912ad horiz.jpg|7912AD A40 horizontal | |||
Tek7912ad scan amp.jpg|7912AD A38 scan amplifier | |||
Tek7912ad mpu top.jpg|7912AD A54 MPU (new version with [[Motorola 6802|6802]] CPU SN B111166up) | |||
Tek7912ad mpu bot.jpg|7912AD A54 MPU (new version with [[Motorola 6802|6802]] CPU SN B111166up) | |||
Tek7912ad ieee488 top.jpg|7912AD A56 IEEE 488 | |||
Tek7912ad ieee488 bot.jpg|7912AD A56 IEEE 488 | |||
Tek 7912AD-670-5157-00-power-connector-pcb 1.jpg|7912AD A62 power connector PCB | |||
Tek 7912AD-670-5157-00-power-connector-pcb 2.jpg|7912AD A62 power connector PCB | |||
Tek 670-6466-00 1.jpg | 670-6466-00 plug-in extender | Tek 670-6466-00 1.jpg | 670-6466-00 plug-in extender | ||
</gallery> | </gallery> | ||
===7912HB=== | ===7912HB=== | ||
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Tek 7912hb 4.jpg|7912HB | Tek 7912hb 4.jpg|7912HB | ||
</gallery> | </gallery> | ||