[R-390] OT: Low-voltage tubes

[Llgpt@aol.com]

In a message dated 8/15/2003 11:23:23 AM Central Daylight Time, 
cbscott@ingr.com writes:

> I recently had to have a Zenith TransOceanic.  This is the H500 model so it
> is still tube stuff (except for the selenium rectifier).
> 
> My question is do these low-voltage tubes glow very much?  These are types
> 1U4, 1U5, 1L6, and 3V4.  I put them in my tester and did not notice any glow
> but without the glow, some still tested okay.  Is this just a characteristic
> of these tube types?  I realize this radio was meant to run off batteries so
> the enery consumed in lighting the tubes had to be minimal, but I was
> wondering if I should be able to see anything when they are operational?
> 
> Thanks,
> 
> Barry(III) - N4BUQ
> 

They are very dim. This is normal. 

Les


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