305

Manuals – Specifications – Links – Pictures

The Sony/Tektronix 305 DMM Oscilloscope is a compact dual-trace 5 MHz analog scope with an integrated digital multimeter. It can be operated on battery power or plugged in to wall power.

Key Specifications

Bandwidth	5 MHz
Deflection	5 mV/div to 10 V/div , variable up to 25 V/div
Input impedance	1 MΩ // 47 pF
Sweep	1 μs/div to 500 ms/div, 1–2–5, ×10 magnifier (i.e. to 100 ns/div)
Calibrator	0.3 Vp-p
CRT	10 × 8 divisions @ 6.32 mm, 154-0667-xx, P31 phosphor, 2 kV acceleration, internal non-illuminated graticule
AC Power	90–132 V or 180–250 V, 48–440 Hz, ≤17 W
DC Power	9–32 V, ≤17 W
Battery	Internal NiCd, runtime 1.6 h (scope+DMM) / 2 h (scope only) / 10 h (DMM only), charge time 16 h
Dimensions	11.2 cm × 23.6 cm × 37.1 cm
Weight	4.8 kg
Features	3½ Digit Digital Multimeter: 2/20/200/1000 V DC ±0.1% 2/20/200/700 V AC ±0.5% 40-500 Hz 2/20/200/2000 kΩ ±0.6% Dual channel, Ch1/Ch2/Chop/Alt/Add/Inv Ch2/X-Y modes Ext Trig / X input (supports X-Y displays up to 200 kHz) External blanking input (by deflection, not Z modulation, to 100 kHz) Built-in battery

Prices

Year	Catalog price	In 2026 dollars
1979	$1,725	~$7,700
1986	$2,590	~$7,700
1991	$3,610	~$8,600

Links

• Sony/Tektronix 305 DMM Oscilloscope Repair Introduction @ YouTube

Documents referencing 305

Pictures

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Components

Some Parts Used in the 305