Re: [neonixie-l] Re: Weird rectangular 6G-E12A Magic Eye tubes I found

[Bill Notfaded]

Will do Jan... if you know someone that needs one let me know.  I'll be 
glad to make them a deal on one if they need it for a radio.

Bill

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Re: [neonixie-l] Re: Weird rectangular 6G-E12A Magic Eye tubes I found

['Jan Wuesten' via neonixie-l]

Those are wanted spareparts for quite a few collectible FM tuners, it may
be wise not to use thme in a project but rather let them be used as spares
by people who need spares...



Am Di., 21. Mai 2019 um 15:36 Uhr schrieb Oscilloclock <
i...@oscilloclock.com>:

> p.s. This is used in FM radios. The text explains that it's driven by the
> ratio detector (discriminator) output / limiter grid voltage. I'm not that
> familiar with valve FM radio circuits, but it may make sense to others on
> this group.
>
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[neonixie-l] Re: Weird rectangular 6G-E12A Magic Eye tubes I found

[Oscilloclock]

p.s. This is used in FM radios. The text explains that it's driven by the 
ratio detector (discriminator) output / limiter grid voltage. I'm not that 
familiar with valve FM radio circuits, but it may make sense to others on 
this group.

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[neonixie-l] Re: Weird rectangular 6G-E12A Magic Eye tubes I found

[SWISSNIXIE - Jonathan F.]

Oh wow, these are rather rare tubes! Lucky find 

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[neonixie-l] Re: Weird rectangular 6G-E12A Magic Eye tubes I found

[gregebert]

I've done a bit of experimenting with magic-eye tubes, and the sad fact is 
they have a rather short lifetime, on the order of a few hundred hours.
So if you are making a gizmo with these, buy plenty of spares and minimize 
the time they are energized.

I'm fairly certain the filament will long outlive the phosphor as long as 
you limit the inrush current.

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