7A18: Difference between revisions
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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]]. | ||
{{BeginSpecs}} | {{BeginSpecs}} | ||
{{Spec | Input impedance | 1 MΩ // 20 pF }} | {{Spec | Input impedance | 1 MΩ // 20 pF }} | ||
Revision as of 07:02, 24 October 2014
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 readout circuits.
Key Specifications
| Input impedance | 1 MΩ // 20 pF |
|---|---|
| Deflection | 5 mV/div to 5 V/div in 1–2–5 sequence, 2% |
| Bandwidth | 0 – 75 MHz (DC), 10 Hz – 75 MHz (AC) |
| Noise | < 300 μV in 5 mV/Div |
| Features |
|
| Weight | 1.4 kg |
Prices
| Year | 1971 | 1976 | 1980 | 1984 | 1990 |
|---|---|---|---|---|---|
| Catalog price | $535 | $615 | $915 | $1,250 | $1,790 |
| 2014 value | $3,140 | $2,570 | $2,640 | $2,860 | $3,260 |
Pictures
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7A18A Front
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7A18A left side. The step attenuators can be seen on the left, the amplifier board on the right.
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7A18A right side. The circuit boards on top carry the readout circuitry.
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7A18 attenuator opened. One of the attenuation R/C modules has been unplugged to reveal the switch contacts.
