| DC to 225 MHz Bandwidth |
| DC to 20 MHz Bandwidth Limiting available |
| 1MΩ 2%, 20pf Input |
| 5 mV/div to 5 V/div Calibrated Deflection Factors |
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The 1979 catalog lists the following recommended probes for the 7A16A:
Passive : P6009, P6013A, P6015, P6063B, P6101, P6106
Active : P6046, P6201, P6202
Current : P6021, P6022, P6302/AM503
The 7A16A is a wideband plug-in amplifier for all 7000-Series mainframes. It features constant bandwidth over the deflection factor range of 5 mV/div to 5 V/div. Polarity of the display is selectable, as is bandwidth, which can be either FULL or limited to 20 MHz for low frequency applications.
| | MAINFRAME | BANDWIDTH | RISETIME |
|---|
| 7900 FAMILY | 7900 | 225 MHz | 1.6 ns |
| 7700 FAMILY | 7704A Opt 9 | 170 MHz * | 2.1 ns |
| 7704A | 160 MHz | 2.2 ns |
| R7704 | 150 MHz | 2.4 ns |
| 7600 FAMILY | 7603/R7603
7603N Opt 11 ** | 100 MHz | 3.5 ns |
| 7500 FAMILY | 7504 | 90 MHz | 3.9 ns |
| 7503 | 90 MHz | 3.9 ns |
| 7514 | 90 MHz | 3.9 ns |
| 7400 FAMILY | 7403N/R7403N | 60 MHz | 5.9 ns |
| STORAGE FAMILY | 7623/R7623 | 100 MHz | 3.5 ns |
| 7613/R7613 | 100 MHz | 3.5 ns |
| 7313/R7313 | 25 MHz | 14 ns |
DC to 20 MHz within 3 MHz bandwidth mode. 10 Hz or less, AC coupled (lower -3 dB)
* System bandwidth temperature range from +20°C to +30°C.
** Refer to 50 MHz Ruggedized Oscilloscope System.
Deflection Factor -- 5 mV/div to 5 V/div in 10 calibrated steps (1-2-5 sequence). Accuracy is within 2% with GAIN adjusted at 10 mV/div. Uncalibrated VARIABLE is continuous between steps and to at least 12.5 V/div.
Input R and C -- 1 MΩ within 2%; @20pF
Max Input Voltage -- DC Coupled: 250 V (DC + Peak AC); AC component 500 V P-P maximum, 1 kHz or less. AC Coupled: 500V (DC + Peak AC); AC component 500 V P-P maximum 1 kHz or less.
DC Stability -- Drift with ambient temperature (constant line voltage) is 0.01 div/°C. Drift time (ambient temperature and line voltage constant) 0.02 div in any one minute after 1 hour warm-up.
Probes --
| ATTEN. | RECOMM.
PROBE | SYSTEM
ACCURACY | RECOMM.
FAMILY |
|---|
| 1X | P6011 | 2% | All |
| 10X | P6053A | 3% | 7600,7700,7900 |
| P6065 | 2% | 7313,7400 |
| 100X | P6009 | 3% | All |
| 1X FET | P6201 | 5% | 7500,7700,7900 |
above excerpt from 1973 Tektronix Products Catalog
General
To effectively use the 7A16A, the operation and capabilities of the instrument must be known. This section describes fron-panel control functions, general information on signal input connections, and other subjects that pertain to various measurement applications.
Installation
The 7A16A can be installed in any compartment of TEKTRONIX 7000-Series Oscilloscopes, but is intended for use primarily in vertical plug-in compartments. To install, align the upper and lower rails of the 7A16A with the oscilloscope tracks and insert the plug-in. The front panel will be flush with the front of the oscilloscope when the plug-is inserted, and the latch at the bottom-left corner will be in place against the front panel.
Functions of Controls and Connectors
Front Panel
INPUT Connector
Provides signal connection to the amplifier.
AC-GND-DC Switch
Selects signal input coupling mode.
AC: The AC component of the signal is coupled to the input while the DC component is blocked.
DC: Both AC and DC components of the signal is coupled to the amplifier input.
GND: Grounds the amplifier input while maintaining the same load at the INPUT connector. Provides a path for pre-charging the AC coupling capacitor (this feature protects both the 7A16A and the source generator from possible over-voltage conditions).
POSITION
Controls position of the trace.
IDENTIFY Pushbutton
Deflects trace about 0.3 division for trace identification. In instruments with readout, also replaces readout with the word "IDENTIFY".
VOLTS/DIV Switch
Selects calibrated deflection factors from 5 mV/div to 5 V/div; 10 steps in a 1-2-5 sequence.
VARIABLE (VOLTS/DIV)
Provides continuously variable uncalibrated settings between calibrated steps. Extends the deflection factor to 12.5 volts/division or more.
GAIN Adjustment
Screwdriver adjustment permits calibration of deflection factor.
POLARITY Switch
Provides a means of inverting the display.
+UP: A positive-going signal at the INPUT connector deflects the CRT display upward.
INVERT: A positive-going signal at the INPUT connector deflects the CRT display downward.
BANDWIDTH Switch
Provides a means of limiting the upper bandwidth.
FULL: Allows the 7A16A to operate at full rated bandwidth.
20 MHz: Reduces the upper bandwidth of the 7A16A to about 20 MHz.
above excerpt from 7A16A AMPLIFIER Instruction Manual
| Knobs |
| 1- 1 | 366-1059-00 | Push Button : Gray (Identify) |
| 1- 2 | 366-1077-00 | Knob, Gray (large outer) (position) |
| 1- 3 | 366-1166-00 | Knob : Red (Variable) |
| 1- 4 | 366-1299-00 | Knob : Gray (Volts/Div) |
| 1- 5 | 366-0215-02 | Knob : Lever Switch (AC-GND-DC) |
| 1- 6 | 366-1058-42 | Knob : Latch (7A16A Pull Tab)
| | Pots/Switches |
| 1-78(R516) | 311-0091-00 | Res., Var, Nonwir : 1K Ohm, 10%, .5W (AB CB2025) (Gain) |
| 1-81(R515/S515) | 311-1421-01 | Res., Var, Nonwir : 2.5K Ohm, 10%, 0.5 W w/ Switch (AB W-3083-E) (VAR) |
| 1-14(R736/S736) | 311-1320-00 | Res., Var, Nonwir : 5K Ohm, 10%, 1W w/ Switch (Vert Position / Identify) |
| 1-17 | 260-0816-00 | Switch, Slide : DPDT (Polarity) |
| 1-17 | 260-0816-00 | Switch, Slide : DPDT (Bandwidth) |
| Microcircuits |
| U350(<B030000) | 155-0078-05 | Microcircuit, LI : ML, Vert Ampl, Sel |
| U350(>B030000) | 155-0078-01 | Microcircuit, LI : ML, Vert Ampl, Sel |
| U450(<B030000) | 155-0078-07 | Microcircuit, LI : ML, Vert Ampl, Sel |
| U450(>B030000) | 155-0078-03 | Microcircuit, LI : ML, Vert Ampl, Sel |
| U550(<B030000) | 155-0078-07 | Microcircuit, LI : ML, Vert Ampl, Sel |
| U550(>B030000) | 155-0078-03 | Microcircuit, LI : ML, Vert Ampl, Sel |
| U750(<B030000) | 155-0078-07 | Microcircuit, LI : ML, Vert Ampl, Sel |
| U750(>B030000) | 155-0078-03 | Microcircuit, LI : ML, Vert Ampl, Sel |
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