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321: Difference between revisions
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Later 321 and 321A use a [[7586]] Nuvistor for that role. Latest 321A (SN6000 up) use a FET [[151-1011-01]]. | Later 321 and 321A use a [[7586]] Nuvistor for that role. Latest 321A (SN6000 up) use a FET [[151-1011-01]]. | ||
In several circuits, the 321 uses [[OC170]] transistors where the 321A uses [[2N2207]] transistors. | In several circuits, the 321 uses [[OC170]] transistors where the 321A uses [[2N2207]] transistors. | ||
{{BeginSpecs}} | {{BeginSpecs}} | ||
{{Spec | Bandwidth | | {{Spec | Bandwidth | 5 MHz (321) / 6 MHz (321A) }} | ||
{{Spec | Rise time | | {{Spec | Rise time | 70 ns (321) / 64 ns (321A) }} | ||
{{Spec | Sweep | 0 | {{Spec | Sweep | 0.5 μs/Div to 0.5 s/Div, 1—2—5, ×5 magnifier (i.e. to 50 ns/Div) }} | ||
{{Spec | Deflection | | {{Spec | Deflection | 10 mV/Div to 20 V/Div }} | ||
{{Spec | Input impedance | 1 MΩ // 35 pF }} | {{Spec | Input impedance | 1 MΩ // 35 pF }} | ||
{{Spec | Calibrator | 0.5 V<sub>p-p</sub>, about | {{Spec | Calibrator | 0.5 V<sub>p-p</sub>, about 2 kHz }} | ||
{{Spec | CRT | [[T3211-31]] or [[154-433]], P31 phosphor, 10 × 6 Div. @ 6.25 mm (0.25"), 4 kV acceleration }} | {{Spec | CRT | [[T3211-31]] or [[154-433]], P31 phosphor, 10 × 6 Div. @ 6.25 mm (0.25"), 4 kV acceleration }} | ||
{{Spec | AC Power | 90—136 V or 180—272 V, | {{Spec | AC Power | 90—136 V or 180—272 V, 20 W }} | ||
{{Spec | DC Power | 11.5—35 V, 8.5 W min., 24 | {{Spec | DC Power | 11.5—35 V, 8.5 W min., 24.5 W max., 700 mA current typ. }} | ||
{{Spec | Battery | Ten size "D" NiCd cells, runtime | {{Spec | Battery | Ten size "D" NiCd cells, runtime 5 h (4 Ah cells), 3 h (2.5 Ah cells), charge time 16 h }} | ||
{{Spec | Dimensions | 21 | {{Spec | Dimensions | 21.67 cm × 14.6 cm × 40 cm (8.5" × 5.75" × 16") }} | ||
{{Spec | Weight | unknown, about 5 kg }} | {{Spec | Weight | unknown, about 5 kg }} | ||
{{Spec | Features | | {{Spec | Features | | ||
* Ext Trig / X input (supports X-Y displays) | * Ext Trig / X input (supports X-Y displays) | ||
* External blanking input (by deflection, not Z modulation) | * External blanking input (by deflection, not Z modulation) | ||
* Built in battery | * Built-in battery | ||
}} | }} | ||
{{EndSpecs}} | {{EndSpecs}} | ||
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DC supply. The problem is, I have only the line cord, and not the | DC supply. The problem is, I have only the line cord, and not the | ||
DC cord. The power input plugs on the scope are obviously | DC cord. The power input plugs on the scope are obviously | ||
custom, long predating the standard IEC plug everyone uses | custom, long predating the standard IEC plug everyone uses today. | ||
today. | |||
So I improvised. The pin spacing for the 3-pin DC input plug is | So I improvised. The pin spacing for the 3-pin DC input plug is | ||