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4th June 2006, 06:47 PM
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#1 |
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diyAudio Member
Join Date: Feb 2002
Location: SWE EU
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strange tube G1 S/5
Any ideas what kind of tube this is?
Made by "Standard radiofabrik" in Sweden Printed on the carton: G1 S/5 size about the standard, 6AS7 and like..
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4th June 2006, 06:58 PM
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#3 |
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diyAudio Member
Join Date: Feb 2002
Location: SWE EU
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are you really sure?
 seriously, of course it can be just a lightbulb, but why are there something like a getter-plate connected to one of the pins? I was thinking it was a "slow-start" kind of gizmo or a series-filament-thingie..
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4th June 2006, 07:04 PM
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#4 |
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diyAudio Member
Join Date: Oct 2004
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Mmm... some ballast kind of thing, or even a very strange gas tube if you say it has a plate... however, from the photo, no signs of getter or plates.
Have you tried to light it up? Maybe firstly measure DC resistance of the filament, just to make a rought guess on what voltage this is supposed to run. |
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4th June 2006, 07:10 PM
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#6 |
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diyAudio Member
Join Date: Feb 2002
Location: SWE EU
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DC-resistance is merely 4 ohms between pin 2 and 7..
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4th June 2006, 07:13 PM
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#8 |
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diyAudio Member
Join Date: Feb 2002
Location: SWE EU
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detail..
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4th June 2006, 07:15 PM
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#9 |
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diyAudio Member
Join Date: Feb 2002
Location: SWE EU
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due to the particular use of pin 2 and 7, can it just be a "dummy-load" for a series-filament tube, during faultfinding?
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