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{{Oscilloscope Sidebar|
{{Oscilloscope Sidebar  
title=Tektronix 7912|
|manufacturer=Tektronix
image=Tek-7912ad.jpg|
|series=7000-series scopes
caption=Tektronix 7912AD with [[7A26]] and [[7B90P]] |
|model=7912
introduced=1973 |
|image=Tek-7912ad.jpg
discontinued=1989 |
|caption=Tektronix 7912AD with [[7A26]] and [[7B90P]]  
summary=500/750 MHz Digitizer|
|introduced=1973  
manuals=
|discontinued=1989  
|designers=Carlo Infante;Jim Cavoretto;
|summary=500/750 MHz Digitizer
|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/tek_7912_and_related_digitizer_docs.pdf 7912 and related digitizer documents]
* [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]
* ''complete service manual needed [[Category:Manual needed]]''
* [[Media:070-5077-00.pdf|Tektronix 7912AD Instrument Interfacing Guide (PDF)]]
}}
}}
The '''Tektronix 7912''' was a series of high-speed digitizers that take one [[7000-series_plug-ins#Vertical plug-ins|7000-series vertical plug-in]] and one [[7000-series_plug-ins#Horizontal plug-ins|7000-series horizontal plug-in]].   
The '''Tektronix 7912''' is a series of high-speed digitizers that take one [[7000-series_plug-ins#Vertical plug-ins|7000-series vertical plug-in]]  
and one [[7000-series_plug-ins#Horizontal plug-ins|7000-series horizontal plug-in]].   


All 7912 models use the same internal CRT-based, digitizing [[scan converter]] tube ([[T7912]]) that is not visible from the outside.  
All 7912 models use the same internal CRT-based, digitizing [[scan converter]] tube ([[T7912]]) that is not visible from the outside.  
The signal from the vertical plug-in deflects a writing beam through [[distributed deflection plates]]. The electrons hit a small flat rectangular solid state target, conceptually similar to the image sensor in a digital camera. The resolution of the target is 512×512, giving 512 points in the time domain and 9-bit linear quantization of the input voltage.
The signal from the vertical plug-in deflects a writing beam through [[distributed deflection plates]].  
The electrons hit a small flat rectangular solid state target, conceptually similar to the image sensor in a digital camera.
The resolution of the target is 512×512, giving 512 points in the time domain and 9-bit linear quantization of the input voltage.


With a [[7B92]] sweeping the whole X-axis in 5 ns, and the 7912 capturing 512 samples in that sweep, the 7912 performs the function of a 100 GSample/s A/D converter.
With a [[7B92]] sweeping the whole X-axis in 5 ns, and the 7912 capturing 512 samples in that sweep,  
the 7912 performs the function of a 100 GSample/s A/D converter.


The primary markets for the 7912 series were nuclear and laser research.   
The primary markets for the 7912 series were nuclear and laser research.   


==R7912==
==R7912==
The '''R7912''', introduced in September 1973 (Ref.1), achieved a bandwidth of 500 MHz with a [[7A19]] vertical amplifier plug-in. It was also possible, like in the [[7904]] scope,  to access the CRT deflection plates directly through a [[7A21N]] plug-in and achieve a bandwidth of 1 GHz, albeit at reduced sensitivity (4 V/Div) and loss of triggering and readout functions. Some customers further modified the stock 7912 to increase bandwidth up to 3 GHz in special applications (see literature links below).
The '''R7912''', introduced in September 1973 (Ref.1), achieved a bandwidth of 500 MHz with a [[7A19]] vertical amplifier plug-in.
It was also possible, like in the [[7904]] scope,  to access the CRT deflection plates directly through a [[7A21N]] plug-in and achieve a bandwidth of 1 GHz,
albeit at reduced sensitivity (4 V/Div) and loss of triggering and readout functions.
Some customers further modified the stock 7912 to increase bandwidth up to 3 GHz in special applications (see literature links below).


The reading beam operates differently depending on the output mode. In TV mode, the reading beam scans the target in a horizontal format similar to that used in conventional television systems, and a video output compatible with TV monitors is generated. In Digital mode, the reading beam scans the target vertically, in 512 discrete steps for each of 512 horizontal positions. Waveforms are converted to digital, stored in memory, and can be read by a computer.
The reading beam operates differently depending on the output mode.
In TV mode, the reading beam scans the target in a horizontal format similar to that used in conventional television systems,
and a video output compatible with TV monitors is generated. In Digital mode, the reading beam scans the target vertically,
in 512 discrete steps for each of 512 horizontal positions.
Waveforms are converted to digital, stored in memory, and can be read by a computer.


The R7912 used the [[7000 series readout system]] writing readout characters onto the storage target, which would become part of the output signal in the NON STORE mode.
The R7912 used the [[7000 series readout system]] writing readout characters onto the storage target,
which would become part of the output signal in the NON STORE mode.


The R7912 had a proprietary digital interface. A card for interfacing to a DEC PDP-11 was available.   
The R7912 had a proprietary digital interface.
The Tektronix 067-0679-00 Digital Display Controller is an external module that interfaces with the 7912 and an analog X-Y storage display ([[607?]]).
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]]. The 7912AD has 500 MHz bandwidth.  It was succeeded by the 750 MHz 7912HB in 1987 (using a [[7A29P]] amplifier).  
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).
 
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]].


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]].
===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: NTSC-out, X-Y low-speed analog, and a [[GPIB interface]].


With aftermarket modifications to the electronics, 7912AD bandwidths have been extended up to 3 GHz in special cases.
With aftermarket modifications to the electronics, 7912AD bandwidths have been extended up to 3 GHz in special cases.
Line 49: Line 73:
==Specifications==
==Specifications==


The Tektronix 7912AD is 19" wide, 7" tall, 27" deep, and weighs 55 pounds.  It uses 360 watts maximum.
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==
Line 70: Line 94:
==See Also==
==See Also==
* [[WP2051]], [[WP2052]]
* [[WP2051]], [[WP2052]]
* [[MP1101]]
* [[SCD1000]], [[SCD5000]]
* [[SCD1000]], [[SCD5000]]
* [[670-6466-00]] 7912 AD plug-in interface extender
* [[067-0854-00]] Calibration Kit
* [[067-0679-99]] R7912 Demo Unit


==Pictures==
==Pictures==
Line 80: Line 108:
R7912 2.jpg | R7912 controls
R7912 2.jpg | R7912 controls
R7912 3.jpg | R7912 rear
R7912 3.jpg | R7912 rear
Tek wp2000 2.jpg|067-0679-00 front next to [[608]] monitor
Tek wp2000 3.jpg|067-0679-00 rear next to [[608]] monitor
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
7912ad-block.png | 7912AD block diagram
TEK Tube7912 Pic5.jpg | T7912 tube - read part (left), target (center), write part (right). See [[T7912]] article for more photos.
7912ad.jpg|7912AD front
Tek wp2000 1.jpg|WP 2000
Tek wp2000 2.jpg|WP 2000
Tek wp2000 3.jpg|WP 2000
IMG 20130408 115501.jpg|7912AD TV output on NTSC monitor
IMG 20130408 115501.jpg|7912AD TV output on NTSC monitor
Tek7912AD Top.JPG | of 912AD top view
7912AD_FrontPanel.jpg|7912AD Back side of front panel
Tek7912ad ieee488 top.jpg|7912AD IEEE 488
7912AD_A10_rear.jpg|7912AD A10 rear
Tek7912ad ieee488 bot.jpg|7912AD IEEE 488
7912AD_A10_front.jpg|7912AD A10 front with buttons partially removed to access the [[150-0048-01]] lamps
Tek7912ad mpu top.jpg|7912AD MPU
7912AD_PowerSwitch.jpg |7912AD A12 power button PCB front
Tek7912ad mpu bot.jpg|7912AD MPU
7912AD_PowerSwitch_dis2.jpg |7912AD A12 power button disassembled to access the [[150-0048-01]] lamp
Tek7912ad 5156 bot.jpg|7912AD 5156
7912AD_A12_PowerSwitchRear.jpg| 7912AD A12 power button PCB rear
Tek7912ad 5156 top.jpg|7912AD 5156
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 4377
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
</gallery>
===7912HB===
<gallery>
Tek 7912hb 1.jpg|7912HB
Tek 7912hb 2.jpg|7912HB
Tek 7912hb 3.jpg|7912HB
Tek 7912hb 4.jpg|7912HB
</gallery>
</gallery>


{{Custom ICs|R7912}}
{{Custom ICs|7912AD}}
{{Custom ICs|7912HB}}


[[Category:7000 series digitizer mainframes]]
[[Category:7000 series digitizer mainframes]]

Revision as of 10:24, 1 September 2021

Manuals – Specifications – Links – Pictures

The Tektronix 7912 is a series of high-speed digitizers that take one 7000-series vertical plug-in and one 7000-series horizontal plug-in.

All 7912 models use the same internal CRT-based, digitizing scan converter tube (T7912) that is not visible from the outside. The signal from the vertical plug-in deflects a writing beam through distributed deflection plates. The electrons hit a small flat rectangular solid state target, conceptually similar to the image sensor in a digital camera. The resolution of the target is 512×512, giving 512 points in the time domain and 9-bit linear quantization of the input voltage.

With a 7B92 sweeping the whole X-axis in 5 ns, and the 7912 capturing 512 samples in that sweep, the 7912 performs the function of a 100 GSample/s A/D converter.

The primary markets for the 7912 series were nuclear and laser research.

R7912

The R7912, introduced in September 1973 (Ref.1), achieved a bandwidth of 500 MHz with a 7A19 vertical amplifier plug-in. It was also possible, like in the 7904 scope, to access the CRT deflection plates directly through a 7A21N plug-in and achieve a bandwidth of 1 GHz, albeit at reduced sensitivity (4 V/Div) and loss of triggering and readout functions. Some customers further modified the stock 7912 to increase bandwidth up to 3 GHz in special applications (see literature links below).

The reading beam operates differently depending on the output mode. In TV mode, the reading beam scans the target in a horizontal format similar to that used in conventional television systems, and a video output compatible with TV monitors is generated. In Digital mode, the reading beam scans the target vertically, in 512 discrete steps for each of 512 horizontal positions. Waveforms are converted to digital, stored in memory, and can be read by a computer.

The R7912 used the 7000 series readout system writing readout characters onto the storage target, which would become part of the output signal in the NON STORE mode.

The R7912 had a proprietary digital interface. 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.

7912AD and 7912HB

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).

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.

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

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 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.

With aftermarket modifications to the electronics, 7912AD bandwidths have been extended up to 3 GHz in special cases.

Specifications

The Tektronix 7912AD is 19" wide, 7" tall, 27" deep, and weighs 55 pounds. It consumes 360 watts maximum.

Literature and Software

  1. Hale Farley, The introduction of the R7912 in Tek Retirees Newsletter 11/2012
  2. US Patent 3748585: Silicon Diode Array Scan Converter Tube and Method of Operation. Culter et al, July 1973.
  3. LLE Review, Oct-Dec 1985 mentioning the LM7912A, a Lockheed-modified R7912 variant having "a bandwidth of 3.5 GHz at the -3 dB point, less than 5% undershoot and overshoot, with a 12-bit output (2 mV/bit)"
  4. Lockheed Palo Alto Research Lab study for LLL (June 1978) describing the LM7912 Enhanced Performance Transient Digitizer, claiming 3 GHz bandwidth
  5. William B. Boyer, Data Acquisition and Processing on Electron Beam Fusion Accelerators. IEEE Transactions on Nuclear Science Vol.NS-25, No. 1, February 1978
  6. Thesis on "7912ADM" upgrade version
  7. Improvement of the Bandwidth of the Transient Digitizers in the LIDAR Thomson Scattering Diagnostic on JET. Risø National Laboratory, Denmark, June 1990 discussing how removing the delay line and replacing the compensation circuit can boost the 7912AD+7A29 combination to 1.1 GHz bandwidth
  8. 7912 GPIB examples

Links

See Also

Pictures

R7912

7912AD

7912HB

Custom ICs used in the R7912

Page Model Part nos Description Designers Used in
155-0011-00 M012 155-0011-00 clock and chop blanking Les Larson 485 7313 7403N R7403N 7503 7504 7514 7603 AN/USM-281C 7613 7623 7623A 7633 7704 R7704 7704A 7834 7844 7854 7904 7904A R7903 R7912 7912AD 7912HB 7934 7104 R7103 AN/USM-281C
155-0012-00 M015 155-0012-00 Z Axis Logic Les Larson 485 7504 7514 7704 R7704 7704A 7834 7844 7854 7904 R7903 7904A R7912 7934 7912AD 7912HB 7104 R7103
155-0022-00 M036 155-0022-00 155-0022-01 analog multiplexer Gene Andrews 147 148 149 335 468 1430 1441 1461 1900 1910 2220 2221 2230 5223 5403 5440 5441 5443 5444 5A38 7313 7403N 7503 7504 7514 7603 AN/USM-281C 7613 7623 7623A 7633 7704 R7704 7704A 7834 7844 7854 R7912 7912AD 7912HB 7904 R7903 7904A 7934 7A12 7A18 7A18A 7A18N 7B52 7B53N 7D10 7D11 7D12 NT-7000 P7001
155-0048-01 M052F 155-0048-00 155-0048-01 155-0055-00 155-0055-01 trigger sweep Dave Allen 211 212 213 214 432 433 5B12N 5B13N 5L4N 603 604 605 606 607 624 SC501 R7912
155-0059-00 M077A 155-0059-00 HF amplifier Thor Hallen 7834 7844 7854 7904 R7903 R7912 7912AD
155-0060-00 M071E 155-0060-00 155-0060-01 channel selector amplifier Hans Springer R7903 7904 R7912
155-0065-00 H074 155-0065-00 155-0064-01 155-0125-00 deflection amplifier 7844 7904 R7912 R7903
155-0067-02 M091B 155-0067-00 155-0067-02 155-0067-03 SMPS controller Joe Burger Gene Andrews 7704A 7834 7844 7854 7904 R7903 7904 7904A 7934 R7912 7912AD 7912HB 7934 7104 R7103 308 434 485 690 P7001
155-0078-00 M084 155-0078-xx 155-0273-00 155-0274-00 broadband amplifier John Addis 464 465 466 468 475 475A 475M 485 7834 7844 7854 7904 R7903 R7912 7912AD 7912HB 7104 7A16A 7A16P 7A24 7A26 7A42 067-0587-01 067-0680-00 AM503 PG502 PG508 DC510 DC5010 FG5010
155-0095-00 155-0095-00 155-0095-00 155-0095-01 155-0095-03 HF differential amplifier 7834 7844 7904 R7903 R7912 7912AD

Custom ICs used in the 7912AD

Page Model Part nos Description Designers Used in
155-0011-00 M012 155-0011-00 clock and chop blanking Les Larson 485 7313 7403N R7403N 7503 7504 7514 7603 AN/USM-281C 7613 7623 7623A 7633 7704 R7704 7704A 7834 7844 7854 7904 7904A R7903 R7912 7912AD 7912HB 7934 7104 R7103 AN/USM-281C
155-0012-00 M015 155-0012-00 Z Axis Logic Les Larson 485 7504 7514 7704 R7704 7704A 7834 7844 7854 7904 R7903 7904A R7912 7934 7912AD 7912HB 7104 R7103
155-0022-00 M036 155-0022-00 155-0022-01 analog multiplexer Gene Andrews 147 148 149 335 468 1430 1441 1461 1900 1910 2220 2221 2230 5223 5403 5440 5441 5443 5444 5A38 7313 7403N 7503 7504 7514 7603 AN/USM-281C 7613 7623 7623A 7633 7704 R7704 7704A 7834 7844 7854 R7912 7912AD 7912HB 7904 R7903 7904A 7934 7A12 7A18 7A18A 7A18N 7B52 7B53N 7D10 7D11 7D12 NT-7000 P7001
155-0059-00 M077A 155-0059-00 HF amplifier Thor Hallen 7834 7844 7854 7904 R7903 R7912 7912AD
155-0064-00 H074A 155-0064-00 vertical output amplifier 7834 7854 7904 R7903 7912AD 485 PG502
155-0067-02 M091B 155-0067-00 155-0067-02 155-0067-03 SMPS controller Joe Burger Gene Andrews 7704A 7834 7844 7854 7904 R7903 7904 7904A 7934 R7912 7912AD 7912HB 7934 7104 R7103 308 434 485 690 P7001
155-0078-00 M084 155-0078-xx 155-0273-00 155-0274-00 broadband amplifier John Addis 464 465 466 468 475 475A 475M 485 7834 7844 7854 7904 R7903 R7912 7912AD 7912HB 7104 7A16A 7A16P 7A24 7A26 7A42 067-0587-01 067-0680-00 AM503 PG502 PG508 DC510 DC5010 FG5010
155-0095-00 155-0095-00 155-0095-00 155-0095-01 155-0095-03 HF differential amplifier 7834 7844 7904 R7903 R7912 7912AD

Custom ICs used in the 7912HB

Page Model Part nos Description Designers Used in
155-0011-00 M012 155-0011-00 clock and chop blanking Les Larson 485 7313 7403N R7403N 7503 7504 7514 7603 AN/USM-281C 7613 7623 7623A 7633 7704 R7704 7704A 7834 7844 7854 7904 7904A R7903 R7912 7912AD 7912HB 7934 7104 R7103 AN/USM-281C
155-0012-00 M015 155-0012-00 Z Axis Logic Les Larson 485 7504 7514 7704 R7704 7704A 7834 7844 7854 7904 R7903 7904A R7912 7934 7912AD 7912HB 7104 R7103
155-0022-00 M036 155-0022-00 155-0022-01 analog multiplexer Gene Andrews 147 148 149 335 468 1430 1441 1461 1900 1910 2220 2221 2230 5223 5403 5440 5441 5443 5444 5A38 7313 7403N 7503 7504 7514 7603 AN/USM-281C 7613 7623 7623A 7633 7704 R7704 7704A 7834 7844 7854 R7912 7912AD 7912HB 7904 R7903 7904A 7934 7A12 7A18 7A18A 7A18N 7B52 7B53N 7D10 7D11 7D12 NT-7000 P7001
155-0067-02 M091B 155-0067-00 155-0067-02 155-0067-03 SMPS controller Joe Burger Gene Andrews 7704A 7834 7844 7854 7904 R7903 7904 7904A 7934 R7912 7912AD 7912HB 7934 7104 R7103 308 434 485 690 P7001
155-0078-00 M084 155-0078-xx 155-0273-00 155-0274-00 broadband amplifier John Addis 464 465 466 468 475 475A 475M 485 7834 7844 7854 7904 R7903 R7912 7912AD 7912HB 7104 7A16A 7A16P 7A24 7A26 7A42 067-0587-01 067-0680-00 AM503 PG502 PG508 DC510 DC5010 FG5010
155-0175-00 H476 155-0175-00 155-0175-05 broadband amplifier John Addis Wink Gross Carl Battjes 7904A 7912HB 7934 7104 R7103 7A29 7A29P 7F10 067-0587-02 067-0587-10 11A71 SCD1000 EG&G N-AM-173A
155-0178-00 H488 155-0178-00 155-0178-05 horizontal output amplifier Dave Morgan 7904A 7912HB 7934 7104