Important Collectors' Watches, Pocket...

Geneva, Mar 16, 2008

LOT 751

?Electronic Master Clock, Nixie Time-Code Generator & Setting Unit for Nixie Time-Code Generator with Digital Time Counter?. Patek Philippe, Genève, Model L4011, Series 0261, Model L4040, Series 013 & Model: 73000A, Series 017. Made circa 1975. Very fine and very rare, 110/220v. electronic center-seconds master clock, Nixie time-code generator and digital hour and minute setting unit for Nixie time-code generator with digital time counter. Accompanied by a manual.

CHF 10,000 - 12,000

USD 9,000 - 11,000 / EUR 6,200 - 7,500

Sold: CHF 13,200

Master: C. Rectangular with two handles, wood-effect sides and top, Perspex cover. D. Black with Arabic numerals, outer minute divisions, outer Arabic five second numerals and divisions, brushed fascia with buttons for adjusting the 1/10 and 1/1000 seconds, slave synchronicity buttons. White baton hands. M. Electronic, a very powerful Master Clock System capable of controlling an almost unlimited number of ?slave? clocks and can be regulated to 1/1000th of a second.
Nixie time-code generator: Vacume tube display with red screen and indications for the minutes, seconds and 1/10 seconds. Setting Unit for Nixie time-code generator: Digital dials for the hours and minutes, buttons for manual/automatic seconds start; hours and minutes adjustment; hours and minutes pre-selection; reset chrono and P.M. / A.M., Perspex cover. Dim. 42.5 x 23 x 13 cm. Each unit. This triple stack with Nixie unit and digital counter unit together with the master clock fixed together as one is very rare.


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Grading System
Grade:
Case: 3

Good
Movement: 3*

Good

Overhaul recommended, at buyer's expense
Dial: 3-01

Good

HANDS Original

Notes

Nixie tube IIs an electronic device for displaying numerals or other information. The glass tube contains a wire-mesh anode, and multiple cathodes in the shape of Arabic numerals Applying power to one cathode surrounds it with an orange glow discharge. The tube is filled with a gas at low pressure, usually mostly neon and often a little mercury and/or argon. Although it resembles a vacuum tube in appearance, its operation does not depend on thermionic emission of electrons from a heated cathode. It is therefore called a cold-cathode tube (a form of gas filled tube), or a variant of neon lamp. Such tubes rarely exceed 40 °C (104 °F) even under the severest of operating conditions in a room at ambient temperature. The most common form of nixie tube has ten cathodes in the shapes of the numerals 0 to 9 (and occasionally a decimal point or two) but there are also types that show various letters, signs and symbols.