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7A18: Difference between revisions
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The Tektronix 7A18 is a general-purpose 75 MHz dual-trace vertical plug-in for [[7000-series scopes]]. | The '''Tektronix 7A18''' is a general-purpose 75 MHz dual-trace vertical plug-in for [[7000-series scopes]]. | ||
Model 7A18N is identical except it omits the [[7000 series readout system|readout circuits]]. | Model 7A18N is identical except it omits the [[7000 series readout system|readout circuits]]. | ||
==Specifications== | ==Specifications== | ||
{{BeginSpecs}} | |||
{{Spec | Input impedance | 1 MΩ // 20 pF }} | |||
{{Spec | Deflection | 5 mV/div to 5 V/div in 1–2–5 sequence, 2% }} | |||
{{Spec | Bandwidth | 0 – 75 MHz (DC), 10 Hz – 75 MHz (AC) }} | |||
{{Spec | Noise | < 300 μV in 5 mV/Div }} | |||
{{Spec | Features | | |||
* Mode: CH1 only, CH2 only, Add CH1+CH2, Alternating, Chopped. CH2 can be inverted. | * Mode: CH1 only, CH2 only, Add CH1+CH2, Alternating, Chopped. CH2 can be inverted. | ||
* Input sockets with contact ring for probe ×10 / identify information | * Input sockets with contact ring for probe ×10 / identify information | ||
* No bandwidth limiter switch | * No bandwidth limiter switch | ||
}} | |||
{{Spec | Weight | 1.4 kg }} | |||
{{EndSpecs}} | |||
==Prices== | |||
{| class="wikitable" | |||
|- | |||
! Year | |||
! 1971 | |||
! 1976 | |||
! 1980 | |||
! 1984 | |||
! 1990 | |||
|- | |||
! Catalog price | |||
|align=right| $535 | |||
|align=right| $615 | |||
|align=right| $915 | |||
|align=right| $1,250 | |||
|align=right| $1,790 | |||
|- | |||
! 2014 value | |||
|align=right| $3,140 | |||
|align=right| $2,570 | |||
|align=right| $2,640 | |||
|align=right| $2,860 | |||
|align=right| $3,260 | |||
|- | |||
|} | |||
==Pictures== | ==Pictures== | ||