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CATHOVISOR CATHODE RAY TUBE, BAIRD TELEVISION LTD. image 1
CATHOVISOR CATHODE RAY TUBE, BAIRD TELEVISION LTD. image 2
Lot 71

CATHOVISOR CATHODE RAY TUBE, BAIRD TELEVISION LTD.

21 September 2015, 13:00 EDT
New York

US$1,500 - US$2,500

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CATHOVISOR CATHODE RAY TUBE, BAIRD TELEVISION LTD.

C. 1936, Hysil (Pyrex glass), type 15 MW2, serial No. A2666, pre-mask screen diameter 14½". With the early roundel strip contact boss in black Bakelite, with gilt capital company transfer BAIRD reading across, exposed glass area at neck for heater element view, neck funnel with internal anodised beam coating, etched to cone section with serial and type details with BRITISH MADE below, good phosphorous coated screen field with no ion burn trace in disconnected status. Total length 32".

Complete 5/6 and 6/6 sized CRTs which were used for these first Baird and Marconi/EMI-made mirror-lid televisions are rare enough, but this piece of historic television history is a real true survivor. Heater continuity and emission rate estimated as good. With its original Baird Ltd label, this high-vacuum CRT is one of the best original examples of its type encountered.

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