| 	Models	 | 	BOS-200	 | 	BOS-205	 | 	BOS-350	 | 	BOS-355	 | 	BOS-605	 | 
|---|
| 	Cathode Ray Tube	 | 	6" diagonal, rectangular screen with internal graticule 8 x 10 DIV (1 DIV = 1 cm), B31 phosphor, 2 kV acceleration voltage							 | 	6" diagonal, rectangular screen with internal graticule 8 x 10 DIV (1 DIV = 1 cm), B31 phosphor, 12 kV accel voltage	 | 
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| 	Vertical Deflection											 | 
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| 	Bandwidth	 | 	DC to 20 MHz (-3 dB)			 | 	DC to 40 MHz (-3 dB)			 | 	DC to 60 MHz (-3 dB)	 | 
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| 	Sensitivity	 | 	1 mV/DIV to 1 V/DIV (5 MHz, -3 dB), x5 gain selected 5 mV/DIV to 5 V/DIV			 | 	1 mV/DIV to 1 V/DIV (10 MHz, -3 dB), x5 gain selected 5 mV/DIV to 5 V/DIV			 | 	1 mV/DIV to 1 V/DIV (15 MHz, -3 dB), x5 gain selected 5 mV/DIV to 5 V/DIV	 | 
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| 	Attenuator	 | 	1-2-5 sequence, 10 step with variable control									 | 
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| 	Input Impedance	 | 	1 MΩ ±2%, 25 pF ± 10%									 | 
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| 	Max Input Voltage	 | 	400 V (DC + AC peak)									 | 
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| 	Rise Time	 | 	About 17.5 ns			 | 	About 8.8 ns			 | 	About 5.8 ns	 | 
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| 	Overshoot	 | 	Less than 5%									 | 
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| 	Operation Mode	 | 	CH 1, CH2, DUAL (ALT, CHOP)									 | 
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| 	Algebraic Addition	 | 	CH 1 + CH 2, CH 1 - CH 2									 | 
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| 	Inverter	 | 	CH 2 Only									 | 
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| 	Horizontal Deflection											 | 
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| 	X-Y Mode	 | 	Switch slectable using X-Y switch; CH 1: X axis, CH 2: Y axis									 | 
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| 	Accuracy	 | 	X Axis: ±6%, Y Axis: ±3%									 | 
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| 	Bandwidth	 | 	DC to 1 MHz (-3 dB)									 | 
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| 	X-Y Phase Difference	 | 	Approx. 3 degrees at 50 kHz									 | 
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| 	Sweep System											 | 
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| 	Sweep Display Mode	 | 	Main, Mix	 | 	Main, Mix, Delay	 | 	Main, Mix	 | 	Main, Mix, Delay	 | 	Main, Mix, Delay	 | 
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| 	Hold-Off Time	 | 	5:1 continuously variable									 | 
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| 	Main Sweep											 | 
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| 	Sweep Speed	 | 	0.1 ?s/DIV to 2.0 s/DIV in 1-2-5 sequence, 23 steps									 | 
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| 	Accuracy	 | 	±3%									 | 
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| 	Variable Time Control	 | 	5:1, uncalibrated, continuously variable between steps									 | 
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| 	Sweep Magnification	 | 	10x, ±10%, extended sweep speed up to 10 ns/DIV									 | 
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| 	Delay Sweep											 | 
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| 	Sweep Speed	 | 	0.1 ?s/DIV to 2.0 s/DIV in 1-2-5 sequence, 23 steps			 | 	0.1 ?s/DIV to 2.0 s/DIV in 1-2-5 sequence, 23 steps					 | 
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| 	Accuracy	 | 	±3%			 | 	±3%					 | 
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| 	Sweep Magnification	 | 	10x, ±10%, extended sweep speed up to 10 ns/DIV			 | 	10x, ± 10%, extended sweep speed up to 10 ns/DIV					 | 
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| 	Delay Timeposition	 | 	Variable control to locate desirable waveform for extending			 | 	Variable control to locate desirable waveform for extending					 | 
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| 	Triggering											 | 
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| 	Trigger Coupling	 | 	AUTO, NORM TV-V, TV-H			 | 	AUTO, NORM TV-V, TV-H					 | 
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| 	Trigger Source	 | 	CH 1, CH 2, ALT, LINE, EXT			 | 	CH 1, CH 2, ALT, LINE, EXT					 | 
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| 	Slope	 | 	±			 | 	±					 | 
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| 	Trigger Sensitivity											 | 
|---|
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| 	Coupling	 | 	TV-V, TV-H, Auto, Nom									 | 
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| 	Bandwidth	 | 	DC to 1 kHz, 1 kHz to 100 kHz , 100 Hz to 20 MHz, 100 Hz to 20 MHz									 | 
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| 	Interior	 | 	1.0 DIV, 1.5 DIV, 1.0 DIV, 0.5 Vp-p									 | 
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| 	Exterior	 | 	0.5 Vp-p									 | 
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| 	Dimensions	 | 	324 W x 398 D x 132 mm H (12.75 x 15.67 x 5.20")									 | 
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| 	Net Weight	 | 	Approx. 7.6 kg (16.75 lb)									 | 
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| 	Rated Range of Use	 | 	10 to 35°C (50 to 95°F), 10 to 80% RH									 | 
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| 	Component Test											 | 
|---|
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| 	Test Voltage	 | 	Max 6 Vrms (open circuit)			 | 	Max 6 Vrms (open circuit)					 | 
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| 	Test Current	 | 	Max 11 mA (shorted)			 | 	Max 11 mA (shorted)					 | 
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| 	Test Frequency	 | 	Line frequency			 | 	Line frequency					 | 
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| 	Components	 | 	Capacitor, inductor, diode, transistor, zener, etc.			 | 	Capacitor, inductor, diode, transistor, zener, etc.					 | 
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| 	CH 2 Output											 | 
|---|
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| 	Output level	 | 	100 mV (no load), 50 mV/DIV (with 50 Ω load)									 | 
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| 	Bandwidth	 | 	20 Hz to 20 MHz			 | 	20 Hz to 40 MHz	 | 	20 Hz to 60 MHz			 | 
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| 	Graticule Illumination	 | 	Adjustable									 | 
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| 	Calibrator	 | 	Square wave about 1 kHz, 2 V p-p ±3% | Square wave about 1 kHz, 2V p-p ±3%					 | 
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| 	Z-Modulation	 | 	Positive TTL signal, low-level blank intensity at any intensity, high-level unblank any intensity | Positive TTL signal, low-level blank intensity at any intensity, high-level unblank any intensity					 | 
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| 	Trace Rotation	 | 	Adjustable on front panel				Adjustable on front panel					 | 
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| 	Power Source	 | 	110 to 130V (800 mA fuse), 200 to 260V (600 mA fuse) 50/60 Hz selectable									 | 
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| 	Power Consumption	 | 	Approx. 38 W									 | 
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| 	Limits of Operation	 | 	0 to 50°C (32 to 122°F), 10 to 80% RH									 | 
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| 	Storage Environment	 | 	-30 to 70°C (-22 to 158°F), 10 to 90% RH									 | 
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