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{{BeginSpecs}} | {{BeginSpecs}} | ||
{{Spec | Bandwidth | DC to 30 MHz ( | {{Spec | Bandwidth | DC to 30 MHz (−3 dB) with fast plug-ins ([[1A1]], [[1A2]], [[1A4]], [[1A5]]) }} | ||
{{Spec | Rise time | 12 ns }} | {{Spec | Rise time | 12 ns }} | ||
{{Spec | | {{Spec | Writing speed | 5 cm/μs }} | ||
{{Spec | Line | {{Spec | Line voltage | 104/115/127/208/230 V<sub>AC</sub> ±10%,selected via primary voltage selector and voltage range selector switches, 50 to 60 Hz }} | ||
{{Spec | Thermal | {{Spec | Thermal protection | 65°C (150°F) Automatic resetting [[thermal cutoff]] }} | ||
{{Spec | Power | {{Spec | Power consumption | 650 W, 750 VA }} | ||
{{Spec | Size | | {{Spec | Size | 43.2 cm × 32.9 cm × 60.7 cm (W/L/H, 13" × 24" × 17") }} | ||
{{Spec | Weight | 68 lb | {{Spec | Weight | 31 kg (68 lb) }} | ||
{{Spec | Cooling | AC Fan }} | {{Spec | Cooling | AC Fan }} | ||
{{Spec | Construction | Aluminum alloy chassis. Anodized front panel. Blue vinyl coated cabinet }} | {{Spec | Construction | Aluminum alloy chassis. Anodized front panel. Blue vinyl coated cabinet }} | ||
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===Storage=== | ===Storage=== | ||
The 549 uses the [[T5490]] CRT | The 549 uses the [[T5490]] CRT which has two storage targets, upper and lower, | ||
whose storage mode and erase signals can be controlled independently. | whose storage mode and erase signals can be controlled independently. | ||
There is a remote control cable/switch, | There is a remote control cable/switch, part number 012-0102-00 (photo below), | ||
part number 012-0102-00 (photo below), that can erase the screen and reset the single sweep. | that can erase the screen and reset the single sweep. | ||
===Power Supply=== | ===Power Supply=== | ||
The 549's power supply provides regulated outputs of −12.4 V, −150 V, +100 V, +225 V, +300 V, +350 V, and +500 V as well as a +475 V unregulated output. | The 549's power supply provides regulated outputs of −12.4 V, −150 V, +100 V, +225 V, +300 V, +350 V, and +500 V as well as a +475 V unregulated output. | ||
Line input is connected to main transformer primary via two switches, one to select | Line input is connected to main transformer primary via two switches, one inside the chassis to select the 110 V or 230 V range, and another on the rear of the chassis to select Low/Medium/High voltage in either range. | ||
Multiple secondary windings feeds diodes for rectification for different voltages. Both center-tap and bridge configuration is used. | Multiple secondary windings feeds diodes for rectification for different voltages. Both center-tap and bridge configuration is used. | ||
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The 549 power supply uses a [[delay relay|6N030 delay relay (P/N 148-0021-00)]] to control a relay that switches supply voltages on only after the tubes are warmed up. On power up, only heater voltage is applied to the tubes. After a delay of up to 60 seconds, the thermal delay relay activates the main relay (driven from unregulated +170 V). This also cuts out the delay relay, which can cool down and will be ready to delay again even after a quick interrupt in power input. | The 549 power supply uses a [[delay relay|6N030 delay relay (P/N 148-0021-00)]] to control a relay that switches supply voltages on only after the tubes are warmed up. On power up, only heater voltage is applied to the tubes. After a delay of up to 60 seconds, the thermal delay relay activates the main relay (driven from unregulated +170 V). This also cuts out the delay relay, which can cool down and will be ready to delay again even after a quick interrupt in power input. | ||
The 549 has a 65°C | The 549 has a 65°C (150°F) [[thermal cutoff]]. | ||
The 549 uses a [[120-0423-00]] HV transformer. | The 549 uses a [[120-0423-00]] HV transformer. |