326

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The Sony/Tektronix 326 is an ultra-portable 10 MHz dual trace oscilloscope with a 300 ns delay line and a removable battery pack.

The power supply and oscilloscope are separable. The scope can be be operated without power supply.

Electrically, it is relatively classic, but it is not constructed like classic Tek scopes.

The 326 has no Tek-made ICs. It uses many Sony transistors.

The 326's power supply/charger is conceptually similar to that of the 323, but the 0.3 Ω resistor is in the battery pack.

Key Specifications

Bandwidth	10 MHz (approx. 5 MHz in ×10 mode)
Rise time	36 ns (72 ns in ×10 mode)
Sweep	1 μs/Div to 1 s/Div, 1—2—5, ×10 magnifier (i.e. to 100 ns/Div)
Deflection	10 mV/Div to 10 V/Div (1 mV/Div to 1 V/Div in ×10 mode)
Input impedance	1 MΩ // 47 pF
Calibrator	0.5 Vp-p, 800 Hz ±250 Hz, source impedance 10 kΩ
CRT	10 × 8 Div. @ 6.25 mm (0.25"), 154-0667-xx
AC Power	90—136 V or 180—272 V, 48—440 Hz, 35 VA at 136 V (maximum intensity, maximum charge rate)
DC Power	9—32 V, 12 W max.
Battery	Nine size "C" NiCd cells, runtime 1.5 h (full intensity) / 4 h (low intensity), charge time 16 h
Dimensions	10.2 cm × 22.2 cm × 38.1 cm (31 cm without charger)
Weight	5.9 kg (4.5 kg without charger)
Features	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

Pictures

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  front

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  rear

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  open, lower

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  open, upper

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  new battery pack (homemade from 9 pieces NiCd sub-C cell)

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