Valve used to broadcast Baird in 1936

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Valve used to broadcast Baird in 1936

Postby Viewmaster » Wed Jun 13, 2007 9:26 pm

Recently I acquired the same type valve, a CAT9, as used in the final TX stage at Alexandra Palace in 1936, transmitting the Baird 240 mechanical line system as well as Marconi's 405.

I have made four chrome feet for it to stand up proudly as an Art Deco ornament of that period with a picture of the mast it powered up.

Ultra bright LEDs are in the filament well for illumination, nicely bridging the period from those CAT9 days to our present use of ultra brights.
Albert.
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CAT9 valve.jpg
CAT9 Alexandra Palace valve.
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Ozone.

Postby Steve Anderson » Wed Jun 13, 2007 9:57 pm

Wow! Nice pic Albert, now you're talking my language! There's nothing like the sight of hot anodes and the faint whiff of Ozone in the air! Well, there is, but it's not for discussion on this board!

Steve A.
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Postby AncientBrit » Wed Jun 13, 2007 10:24 pm

A very nice presentation, Albert
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Postby DrZarkov » Wed Jun 13, 2007 10:49 pm

Very beautyful! In my opinion real radios glow in the dark, and a real TV warms in the winter! The ideal room decoration, I would give you my wife's three lava-lamps for your valve :lol:
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Postby Viewmaster » Thu Jun 14, 2007 12:11 am

DrZarkov wrote: I would give you my wife's three lava-lamps for your valve :lol:


Am tempted to say,"I'll have the wife instead", but I won't. :lol:

I bought the valve on eBay and was the only bidder. The brass for the legs and the cost to chrome them was more than the cost of the valve. :shock:
It would make a good icon at the main entrance to an exhibition of historic
technology etc.
Albert.
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