1A7: Difference between revisions

1A7 (view source)

Revision as of 02:58, 11 February 2016

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 Type 1A7 was designed by [[John Addis]] and [[introduced in 1966]].
-In 1968 it was superseded by the FET-equipped '''Type 1A7A''' (designed by [[Thor Hallen]]),
-which also doubled the bandwidth and the common-mode rejection.
+====Type 1A7A====
+In 1968, the 1A7 was superseded by the FET-equipped '''Type 1A7A''' (designed by [[Thor Hallen]]),
+which also doubled common-mode rejection and bandwidth (to 1 MHz).
+The 1A7A's differential amplifier design was re-used with some modifications
+in the [[3A9]], [[7A22]], [[5A22N]], [[AM502]], and [[5030]]/[[5031]]. ''(26A2 too? - schematics needed)''
 Type 1A7A remained available until the end of the [[500-series scopes|500-series]] line after 1974.
-==Specifications==
+{{BeginSpecs}}
-[[Category:Specifications needed]] ''please add''
+{{Spec | Deflection | 10 μV/Div to 10 V/Div in 1–2–5 sequence }}
+{{Spec | Input impedance | 1 MΩ // 47 pF (either input) }}
+{{SpecGroup | 1A7}}
+{{Spec | Bandwidth | 1 MHz, LF limit switchable DC, 0.1 Hz to 10 kHz in ×10 steps, HF limit switchable 100 Hz to 100 kHz in ×3/×10 steps, and 500 kHz; AC coupling 1.6 Hz }}
+{{SpecGroup | 1A7A}}
+{{Spec | Bandwidth | 1 MHz, LF limit switchable DC, 0.1 Hz to 10 kHz in ×10 steps, HF limit switchable 100 Hz to 1 MHz in ×3/×10 steps, AC coupling 1.6 Hz }}
+{{Spec | Signal ranges | }}
+{| class="wikitable" border=1 style="margin-left: 8em;" |
+!Range
+! Differential signal
+! DC Offset
+! Common mode
+|-
+| 10 μV/Div to 10 mV/Div || ±0.4 V || ±0.4 V     || ±10 V
+|-
+| 20 mV/Div to 0.1 V/Div || ±4 V   || ±4 V    || ±100 V
+|-
+| 0.2 V/Div to 1 V/Div   || ±40 V  || ±40 V   || ±500 V
+|-
+| 2 V/Div to 10 V/Div    || ±400 V || ±400 V  || ±500 V
+|-
+|}
+{{EndSpecs}}
 ==Pictures==
 <gallery>
-File:Tek 1a7a 1.JPG|1A7A
+Tek 1a7a 1.JPG|1A7A
-File:Tek 1a7a 2.JPG|1A7A
+Tek 1a7a 2.JPG|1A7A
-File:Tek 1a7a 3.JPG|1A7A
+Tek 1a7a 3.JPG|1A7A
-File:Tek 1a7a 4.JPG|1A7A
+Tek 1a7a 4.JPG|1A7A
-File:Tek 1a7a 5.JPG|1A7A
+Tek 1a7a 5.JPG|1A7A
-File:Tek 1a7a 6.JPG|1A7A
+Tek 1a7a 6.JPG|1A7A
 </gallery>
 [[Category:Introduced in 1966]]
 [[Category:500 series plugins]]