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Re: Big Triode
Subject: Re: Big Triode
Date: Mon, 19 May 1997 09:14:52 +1000
From: Ralph Down <rjdown-at-fan-dot-net.au>
To: tesla-at-pupman-dot-com
>Date: Mon, 19 May 1997 22:12:38 -0700
>From: Glenn Baddeley <gnb-at-werple-dot-net.au>
>To: rjdown-at-fan-dot-net.au
>Subject: Re: Big Triode
>
>Ralph Down <rjdown-at-fan-dot-net.au> wrote Mon, 12 May 1997 09:44:52 +1000
>on <tesla-at-pupman-dot-com>:
>
>>Hi All,
>>I went to a local Hamfest last weekend and scored a large triode tube
>>(valve). It is a Philips TB 4/1250
>>about 4 1/2" diameter and 6" tall with a very substantial anode. I have
>>tried searching on the web for info on this tube, but so far no luck.
>>Does anyone have any data on this tube? - anode voltage, heater voltage,
>>wattage, pin out etc?
>>I hope to use this as a tube tesla coil using a microwave oven
>>transformer (2Kv)
>
>Hi Ralph,
>
>A Hamfest in Australia? How do I find out when such things
>are happening, particularly in Victoria? I would dearly
>love to go to one of these things, being a electronics
>designer/builder/collector of many many years.
>
>My "Philips 1974 pocket book" says:
>TB4/1250
>RF Power Triode
>Filament=10V 9.9A
>Class C Telegraphy: F=100Mhz, Va=4.0Kv, Ia=0.535A, Wa=450W, Wo=1700W
>Class C AM modulator: F=100Mhz, Va=3.0Kv, Ia=0.450A, Wa=300W, Wo=1050W
>Class B modulator: Va=4.0Kv, Ia=0.736A (2 tubes), Wa=450W, Wo=2300W (2 tubes)
>Super giant base: TC=Anode, Pins 1=F, 5=F, 2=3=4=Grid
>
> 3
>
>
> 2 4
> 1 5
>
>An awesome tube indeed! This could form the basis
>of quite a high power Tube Telsa Coil.
>
>Cheers,
>Glenn Baddeley
>Australian Nikola Tesla Society
>
>(Check http://werple-dot-net.au/~ants/ for
>ANTS List subscription info)
>
>
>
>
Today is the tomorrow you worried about yesterday....... and everything
is O.K.