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Old 14th Mar 2018, 10:33 am   #1
vinrads
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Default Info on a Triotron TD2 valve

Does anyone have data on this valve I need to know the anode load at around 110volts , Thank's Mick.
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Old 14th Mar 2018, 10:36 am   #2
PJL
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Default Re: Info on a Triotron TD2 valve

Equivalents are here: http://g3ynh.info/valves/old/Data-Bo.../Triotron.html
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Old 14th Mar 2018, 10:44 am   #3
jonnybear
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Default Re: Info on a Triotron TD2 valve

info here.http://www.r-type.org/exhib/aaj0077.htm.
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Old 14th Mar 2018, 11:06 am   #4
peter_sol
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Default Re: Info on a Triotron TD2 valve

It does not look like it was intended to be used as an output valve hence no RA in the data.
I should try the highest ratio transformer you have.
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Old 14th Mar 2018, 11:10 am   #5
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Default Re: Info on a Triotron TD2 valve

It's intended for a transformer load which to a first order is low dc resistance with anode load impedance reflected from its secondary load.

If you want to use it with a resistive anode load, you're into trickier territory- What is your HT supply volts? Is it the 110V you mention as anode volts or is that the quiescent anode volts you want to end up with from a higher voltage supply?

If your supply is 110V, you'll get something with a 10k anode resistor and about -2V GB, but the gain will only be about 4.

You could squeeze a bit more gain with a higher anode resistor and lower GB but you'll be getting into fairly non linear territory.

If you're thinking about output valve (as mentioned above), a load impedance around 25-30k (the valve's ra is around 14k) would probably squeeze as much as you could expect out of it.
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Old 14th Mar 2018, 11:21 am   #6
Scottart
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Default Re: Info on a Triotron TD2 valve

Hey Mick,
Here :
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Old 14th Mar 2018, 11:42 am   #7
vinrads
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Default Re: Info on a Triotron TD2 valve

Wow ! some very useful info there chaps , couldn't find it in my data book , I have it working with a ten k ohm load , giving ample volume ,Thank's for all the replies cheers Mick.
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