[Boatanchors] 19, 30 & 31 tube info

WA5CAB at cs.com WA5CAB at cs.com
Thu Jan 27 11:40:33 EST 2011


No, unfortunately in this case the TBX through TBX-6 use four 34's (and one 
1C6 and one 837).

In a message dated 1/27/2011 12:57:01 AM Central Standard Time, 
holden7471 at msn.com writes: 
> TBX's use a 30 or two I believe, and anyone interested in building a good 
> regen, the Doerle Twinplex (1932 design) uses a 19. I built one about 10 
> years ago, and it works FB.
> 
> Howie WB2AWQ
> 
> 
>   ----- Original Message ----- 
>   From: Carl<mailto:km1h at jeremy.mv.com> 
>   To: LARRY D GODEK<mailto:telegrapher at q.com> ; 
> boatanchors at mailman.qth.net<mailto:boatanchors at mailman.qth.net> 
>   Sent: Wednesday, January 26, 2011 6:40 PM
>   Subject: Re: [Boatanchors] 19, 30 &31 tube info
> 
> 
>   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<mailto:telegrapher at q.com>>
>   To: <boatanchors at mailman.qth.net<mailto: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
> 

Robert & Susan Downs - Houston
wa5cab dot com (Web Store)
MVPA 9480


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