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Old 7th September 2006, 03:55 AM   #1
bufalo is offline bufalo  Viet Nam
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Default Help me information of the tubes?

Hi all,

I just found and bought the two tubes from an old shop thank to their beauty.
There are charaters "TÃ1-2/8 or 0576" on the tubes. I don't know what it is and for what it is used.

Anyone know them and how to use them, pls hepl me?

thank in advance!
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Old 7th September 2006, 05:52 AM   #2
bufalo is offline bufalo  Viet Nam
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I'm sorry, this is my first post. The pictures that I attached don't display.
Someone show me ways to attach them?
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Old 7th September 2006, 05:53 AM   #3
Bas Horneman is offline Bas Horneman  Netherlands
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They should attach now, please try again.....are they smaller then 100kb?
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Old 8th September 2006, 01:19 AM   #4
bufalo is offline bufalo  Viet Nam
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Here is the pictures.

I think it is thyratrons not triode. I have no idea about the kind of tube so please give me some advices.
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File Type: jpg dscf0230.jpg (66.3 KB, 245 views)
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Old 8th September 2006, 01:34 AM   #5
bufalo is offline bufalo  Viet Nam
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and the datasheet
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Old 8th September 2006, 01:47 AM   #6
Geek is offline Geek
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Thyratron tubes are like a programmable unijunction transistor (PUT), only on steroids.

I dunno, maybe a class-D project?
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Old 8th September 2006, 05:13 AM   #7
gingertube is offline gingertube  Australia
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Yes - definitely thyratrons.

While the grid voltage remains at or below 0V no current flows. Put +20V on the grid and the Thyratron "fires" and conducts anode current .

More like an Silicon Controlled Rectifier (SCR).

Max anode volts 8000 volts
Max anode current 6.5A
Max negative grid voltage -100V
Grid Volts for 2A Anode current 20V (max)

Heater Voltage 5.7v min 6.9 V max (6.3 V typical)
Heater Current 5.5A min 7.5A max

Resistance in grid circuit 10KOhm min. 50KOhm max.

Warm up time 2 minutes

Bulb Temperature 250 degrees Centigrade

Typical life 1000 hrs

Thats about all I could "decode/translate" from the data sheet and there may be errors in that (I don't read Russian but recognize a word here or there).

Cheers,
Ian
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Old 8th September 2006, 09:33 AM   #8
Klimon is offline Klimon  Belgium
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You could build an awesome-looking amplifier with these!
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Old 9th September 2006, 02:02 AM   #9
bufalo is offline bufalo  Viet Nam
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Thanks all of you for the information.

To Klimon,

Can you guide me to build a such awesome amplifier.
As I search on the internet, rythayon generally can not be used to amplify signal linearly. Is that true or false.

I like big tube very much. At present, I'm building a giant amplifier with GU 13 (813 equivalent). So your awesome amplifier make me so interested.
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Old 9th September 2006, 02:48 AM   #10
Tubelab_com is offline Tubelab_com  United States
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You can not build a linear amplifier with a thyratron tube. They were intended as grid controlled switches (the predecessor to the SCR as mentioned) and as such have no linear region. I have several hundred small ones (2D21's) and have found no use for them.

They can be used to make power oscillators, and high voltage trigger switches, so the vacuum tube Tesla Coil crowd may be able to make something with them.
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