326

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

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.

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

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")
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 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

• Tektronix 326 Specifications (PDF)

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)