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{| class="wikitable" style="float:right; margin-left: 15px"
{| class="wikitable" style="float:right; margin-left: 15px"
|+ The last two digits of the 155-0078-xx part number are determined by a selection process after manufacture.
|+ The last two digits of the 155-0078-xx part number are determined by a selection process after manufacture:
These characteristics are summarized below:
! Suffix !! Speed !! DC Charact. !! Replaceable by
! SUFFIX !! SPEED !! DC CHARACTERISTICS !! REPLACEABLE BY
|-
|-
| 00 || Fast || Best || ----
| 00 || Fast || Best || ----
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There are several DC specs which differ with part suffix.   
There are several DC specs which differ with part suffix.   


Suffixes -10, -11, -12 and -13 were used for the redesigned M84, known as the M705.
Suffixes -10, -11, -12 and -13 were used for the redesigned M84, known as the [[M705]].
The M705 was necessary because the original SH2 (2-2.5GHz?) process was being discontinued.  
The M705 was necessary because the original [[SH2]] (2-2.5GHz?) process was being discontinued.  
The M705 was designed by Hal Lilliwhite using the faster SH3 process (6-7GHz).  
The M705 was designed by [[Hal Lilliwhite]] using the faster [[SH3]] process (6-7GHz).  
Additionally, the M705 apparently had the gain setting resistor laser trimmed at the wafer level.  
Additionally, the M705 apparently had the gain setting resistor laser trimmed at the wafer level.  
The M705 was designed in late 1989 and tested in early 1990.
The M705 was designed in late 1989 and tested in early 1990.
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</blockquote>
</blockquote>


{| class="wikitable"
:{| class="wikitable"
|+ The test criteria defining the various grades of M84 are as follows:
|+ Test criteria defining the various grades of M84:
|-
|-
| Displayed Risetime <355ps        ||        -00 and -10      ||      -01 and -11    ||    -02 and -12      ||    -03 and -13
| Displayed Risetime <355 ps      ||        -00 and -10      ||      -01 and -11    ||    -02 and -12      ||    -03 and -13
|-
|-
|Displayed Risetime 355-410ps     ||          -04            ||        -05          ||        -06          ||      -07
|Displayed Risetime 355-410 ps     ||          -04            ||        -05          ||        -06          ||      -07
|-
|-
|Normal Offset (RTO)              ||          <14mV          ||        <14mV         ||      <28mV         ||      <14mV
|Normal Offset (RTO)              ||          <14 mV          ||        <14 mV         ||      <28 mV         ||      <14 mV
|-
|-
|Invert Offset (RTO)              ||          <14mV           ||      <14mV         ||        <28mV         ||      <14mV
|Invert Offset (RTO)              ||          <14 mV           ||      <14 mV         ||        <28 mV         ||      <14 mV
|-||  
|-||  
|HFE of Q1 and Q2                  ||        70-250            ||      70-250        ||        50-400        ||    70-250
|HFE of Q1 and Q2                  ||        70-250            ||      70-250        ||        50-400        ||    70-250
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|Invert Gain                      ||        2.68-2.96        ||      2.68-2.96      ||      2.68-2.96      ||      2.68-2.96
|Invert Gain                      ||        2.68-2.96        ||      2.68-2.96      ||      2.68-2.96      ||      2.68-2.96
|-
|-
|Null Offset (Gain = 0)            ||          10mV           ||      no spec        ||      no spec        ||      <30mV
|Null Offset (Gain = 0)            ||          10 mV           ||      no spec        ||      no spec        ||      <30 mV
|-
|-
|Null Gain (Test of Q3 and Q4)    ||          14mV           ||      no spec        ||      no spec        ||      <14mV
|Null Gain (Test of Q3 and Q4)    ||          14 mV           ||      no spec        ||      no spec        ||      <14 mV
|-
|-
|50% Gain                          ||        0.49-0.51        ||      no spec        ||      no spec        ||      0.49-0.51
|50% Gain                          ||        0.49-0.51        ||      no spec        ||      no spec        ||      0.49-0.51
|-
|-
|Off Feedthrough                  ||          <0.2mV         ||      <0.2mV         ||        <0.2mV       ||      <0.2mV
|Off Feedthrough                  ||          <0.2 mV         ||      <0.2 mV         ||        <0.2 mV       ||      <0.2 mV
|-
|-
|Normal Hump Voltage              ||          <2.5mV         ||      no spec        ||        no spec      ||      no spec
|Normal Hump Voltage              ||          <2.5 mV         ||      no spec        ||        no spec      ||      no spec
|-
|-
|Invert Hump Voltage              ||          <2.5mV         ||        no spec      ||        no spec      ||      no spec
|Invert Hump Voltage              ||          <2.5 mV         ||        no spec      ||        no spec      ||      no spec
|}
|}


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Tek 155-0078-00 excerpt from 067-0587-01.png|Excerpt from [[067-0587-01]] schematic, showing application of 155-0078-00.
Tek 155-0078-00 excerpt from 067-0587-01.png|Excerpt from [[067-0587-01]] schematic, showing application of 155-0078-00.
155-0078-01.jpg | 155-0078-01 amplifiers in [[7A26]]. Note symmetric layout.
155-0078-01.jpg | 155-0078-01 amplifiers in [[7A26]]. Note symmetric layout.
M84 Hump Voltage test fixture.jpg|M84 Hump Voltage Test Fixture Shematic
M84 Hump Voltage test fixture.jpg|M84 Hump Voltage Test Fixture schematic
Tek 155-0078-10.jpg|155-0078-10
Tek 155-0078-10 underside.jpg|155-0078-10
</gallery>
</gallery>


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* [[475]] (U140, U240, U450)
* [[475]] (U140, U240, U450)
* [[485]]
* [[485]]
* [[2220]], [[2221]], [[2230]] (155-0274-00: A1U130, A1U180; 155-0273-00: A2U30, A2U80)
* [[7834]], [[7844]] (U415,U515)
* [[7834]], [[7844]] (U415,U515)
* [[7854]] (A13U520,A13U590,A13U620,A13U680)
* [[7854]] (A13U520,A13U590,A13U620,A13U680)
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* [[AM503]]
* [[AM503]]
* [[PG502]] (U360, -06)
* [[PG502]] (U360, -06)
* [[PG508]] (U850)
* [[DC510]] (A12U1311, A12U1331, -10)
* [[DC510]] (A12U1311, A12U1331, -10)


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