[ARC5] BC453 on 24V

[CARL HUETHER]

Wow, that is the first Ive read about that tube being used.

Several years ago I picked up an elevator control module using 3 of them, Sylvania if I remember. One was good for 1W of Class C CW but I never tried to see how much it could be pushed in voltage and power.

Carl

> On December 11, 2019 at 12:46 PM Ian Wilson <ianmwilson73 at gmail.com> wrote:
> 
>     Some of those receivers used the 28D7 dual beam power tube. This is quoted
>     as 175mW audio output in push-pull with 28V supply. That reminds me, I have
>     some of these "somewhere"...
> 
>     73, ian K3IMW
> 
>     On Tue, Dec 10, 2019 at 4:24 PM Robert Eleazer < releazer at earthlink.net mailto:releazer at earthlink.net > wrote:
> 
>         > >         I used to power up the filaments on my R-11A and reduce the B+ until it quit.  I found I could get down to just a little before I got to 28VDC and still be able to hear a signal.  And with the basic R-11A there was no volume control or gain control.  You just plugged in a headset and listened.
> >          
> >         Note that the various BC-1206 receivers all work on 28VDC B+ and filament voltage, as does the R-392, and numerous tube type marker beacon receivers, including the BC-357, BC-1033, and R-666.
> >          
> >         WAyne
> >         WB5WSV     
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