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| Components and Circuits For discussions about component types, alternatives and availability, circuit configurations and modifications etc. Discussions here should be of a general nature and not about specific sets. |
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1st Mar 2019, 7:55 pm
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#1 |
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Dekatron
Join Date: Nov 2006
Location: London, UK.
Posts: 3,496
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G8-4A valve ... ID
Is this a Nixie tube of sorts?
It looks like it , can’t find it in the usual way !
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Al |
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1st Mar 2019, 8:01 pm
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#2 |
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Dekatron
Join Date: Jun 2015
Location: Biggin Hill, London, UK.
Posts: 5,224
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Re: G8-4A valve ... ID
I think the number is 'GS-4A'.
A google search for 'GS-4A tube' led me to an applications note which implies it is a gas-filled indicator tube (strictly 'Nixie tube' is a trademark) but with symbols like '+', '-', 'V', 'A' etc rather than digits |
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1st Mar 2019, 8:34 pm
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#3 |
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Dekatron
Join Date: Nov 2006
Location: London, UK.
Posts: 3,496
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Re: G8-4A valve ... ID
Thanks for confirming, Tony ...
I didn’t know we ever made these in England
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Al |
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3rd Mar 2019, 9:48 am
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#4 |
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Dekatron
Join Date: Jan 2004
Location: Newcastle upon Tyne, Tyne & Wear, UK.
Posts: 8,195
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Re: G8-4A valve ... ID
Hi Al, a quick and dirty way of seeing what it is is to apply 200V DC through 100K to pairs of electrodes in turn and see what lights up
Ed |
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3rd Mar 2019, 3:35 pm
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#5 |
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Dekatron
Join Date: Nov 2006
Location: London, UK.
Posts: 3,496
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Re: G8-4A valve ... ID
Thank you, Ed! Great idea !
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Al |
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