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Amperex/Philips Z550M “Pixie” Cold Cathode Numerical Indicator Tube
Tube indicateur des chiffres décimaux à cathodes froides
Kaltkatodenröhre zur Anzeigung der dezimalen Zahlen

The Z550M uses a stencil mask with numeral-shaped holes arranged in a circle, instead of the shaped cathodes of the Nixie tubes. It has been developed to satisfy the need for a decade indicator tube which can operate directly from the low voltage electrical readout provided by transistor scalers (counters). It requires an input signal of about 5V at a current of about 50 μA.

Fiche technique • Data sheet • Datenblatt: Z550M.pdf & ZM1050.pdf

J.B. Dance, The Z550M Indicator Tube in Electronic Counting Circuits, London ILIFFE Books Ltd., New York American Elsevier Publishing Compagny Inc., 1967.

 

Amperex/Philips Z550M Pixie Cold Cathode Numerical Indicator Tube

Left: Amperex. Right: Philips.

Hauteur • Height • Höhe : 32 mm • 1" 1/4
Diamètre • Diameter • Durchmesser : 28 mm • 1" 1/8

Amperex/Philips Z550M Pixie Cold Cathode Numerical Indicator Tube

Amperex/Philips Z550M Pixie Cold Cathode Numerical Indicator Tube

Amperex/Philips Z550M Pixie Cold Cathode Numerical Indicator Tube

Left: Schematic representation of the electrode arrangement.
Right: Exploded view of the indicator tube.

 


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