[Boatanchors] 19, 30 & 31 tube info

[Carl]

Those are all early 30's tubes for battery powered farm radios. They have 
minimal value as the needs are low with restorers.

I'll take them and offer to those folks rather than have them trashed as Im 
heavier into old wooden sets than boatanchors.

Carl
KM1H


----- Original Message ----- 
From: "LARRY D GODEK" <telegrapher at q.com>
To: <boatanchors at mailman.qth.net>
Sent: Wednesday, January 26, 2011 8:50 PM
Subject: [Boatanchors] 19, 30 & 31 tube info


>
> I have  a box full of 19, 30 and 31 type tubes.  Are they worth anything? 
> I suspect early 1900's radio sets may have used them.  My Hickok tube 
> tester won't check them so i guess checking for fil continuety will be 
> about the extent of testing.
>
>>From a GE Essential Characteristics manual:
>
> Type 19- Twin Triode Power Amp, 2.0 Vdc fil., 135 V plate
>
> Type 30- Medium Mu- Triode, 2.0 Vdc Fil, 180Vdc max plate
>
> Type 31- Power Amp Triode, 2.0 Vdc Fil., 180Vdc plate, .375W output
>
> Larry
> W0OGH
>
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