I sure wish I could understand what you were saying the things you do are so cool I'm sure if I tried I could get a lot of people watch a video of me electrocuting myself lol
Don't worry, the same thing happened to me, when i finally found and bought a GMI2-b after some years and i tryed it, i found that the heater was disconnected from one of the heater pins, the tube is new...
@ubuntupokemoninc So which tube do you have? You can use a small variac, or an inductor choke (for HID or fluorescent lamps) as inrush limiter for large heaters. A resistor is OK for smaller heaters, the resistor can be rated at only a fraction of the dissipation it will see - as it's only for a moment.
gu-5b, sorry i'm using an on screen keyboard, the heater is 27 amps max @ 12.6 volts. so i can use chokes from high intensity light? we only have CFL bulbs can i use them?
@ubuntupokemoninc I think you'd better use a resistor... here I would use a 250 watt choke for mercury vapor lamps, but I don't know if you have those there. A resistor will be ok, use a ~20-50 watt resistor that limits the inrush heater current to 40-50 amps, then bypass it after a few seconds.
@danrulz98 It's an old ?welding? transformer with 7 turns of 50 mm^2 welding cable wound around it (there was just enough space left to fit those turns).
The tube is still operational however, I think I wont use it to its max ratings anyway, but there's always the risk of the filament remnants shorting out something inside the system - that I'm most afraid of.
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ubuntupokemoninc 1 month ago
I sure wish I could understand what you were saying the things you do are so cool I'm sure if I tried I could get a lot of people watch a video of me electrocuting myself lol
MarshmallowVogt 6 months ago
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ubuntupokemoninc 6 months ago
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ubuntupokemoninc 7 months ago
@ubuntupokemoninc It will not, just make sure you don't get arc overs to it. It could, however, generate some x-rays if it's an all glass tube.
jmartis2 7 months ago
Don't worry, the same thing happened to me, when i finally found and bought a GMI2-b after some years and i tryed it, i found that the heater was disconnected from one of the heater pins, the tube is new...
favret94 8 months ago
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ubuntupokemoninc 8 months ago
@ubuntupokemoninc So which tube do you have? You can use a small variac, or an inductor choke (for HID or fluorescent lamps) as inrush limiter for large heaters. A resistor is OK for smaller heaters, the resistor can be rated at only a fraction of the dissipation it will see - as it's only for a moment.
jmartis2 8 months ago
@jmartis2
gu-5b, sorry i'm using an on screen keyboard, the heater is 27 amps max @ 12.6 volts. so i can use chokes from high intensity light? we only have CFL bulbs can i use them?
ubuntupokemoninc 8 months ago
@ubuntupokemoninc I think you'd better use a resistor... here I would use a 250 watt choke for mercury vapor lamps, but I don't know if you have those there. A resistor will be ok, use a ~20-50 watt resistor that limits the inrush heater current to 40-50 amps, then bypass it after a few seconds.
jmartis2 8 months ago
You could make quite the VTTC with a good one of these !!! Nice tube. Too bad about the heater filament refuse being loose in there.
billg519 8 months ago
What a shame :( Beautiful tube.
What is that transformer you're using?
danrulz98 8 months ago
@danrulz98 It's an old ?welding? transformer with 7 turns of 50 mm^2 welding cable wound around it (there was just enough space left to fit those turns).
The tube is still operational however, I think I wont use it to its max ratings anyway, but there's always the risk of the filament remnants shorting out something inside the system - that I'm most afraid of.
jmartis2 8 months ago