[Lowfer] VHF Question.

[Mike Staines - WM1KE]

This discussion got me reminiscing...

My grandfather and great uncle both worked for David Sarnoff at RCA. I
remember that in their basement was an old tube FM "home broadcasting"
transmitter for sub-50 Mhz. It was bult back in the days when the FM
broadcast band was down there. As I remember it, the plans were published
in RCA's in-house magazine, authored by the two of them. I dont have it but
perhaps it is archived somewhere.

Further info at:
http://en.wikipedia.org/wiki/FM_broadcasting_in_the_United_States

My brother has the familtes old console with AM/SW and the 42-50 Mhz FM
band on it.

73
Mike
WM1KE
(who's club operated Field Day for 3 hours then shut down)
8-(


On Sat, Jun 22, 2013 at 12:01 AM, Mitch Powell <mitch.powell at sympatico.ca>wrote:

> I have a brand new ( in the box ) 8078 power triode.... good for 500-600
> watts at 50 MHz.
> Try googling for the specs.
> The 5v @ 35 Amp filament might make a nice desklamp.
>
> 73
> Mitch
> On 2013-06-21, at 11:43 PM, KD7JYK DM09 wrote:
>
> > :       I'm not sure why you are asking - are you looking for 49MHz tube
> > : gear?
> >
> > When 49 MHz became available for Part 15 devices, such as remote
> controls,
> > cordless mice/keyboards, walkie-talkies, wireless thermometers, et
> cetera.
> > Not phones, per se.  My 1984 freuqncy guide doesn't mention any 49 Mhz
> stuff
> > other than Federal Gov't usage.
> >
> > It seems the spectrum opened up in the 80's, so, about twenty years late
> for
> > consumer tube equipment, although one could homebrew something using
> parts
> > four-decades-plus older than the band.
> >
> > Kurt
> >
> > ______________________________________________________________
> > Lowfer mailing list
> > Home: http://mailman.qth.net/mailman/listinfo/lowfer
> > Help: http://mailman.qth.net/mmfaq.htm
> > Post: mailto:Lowfer at mailman.qth.net
> > Post must be less than 50KB total for message plus attachment!
> >
> > This list hosted by: http://www.qsl.net
> > Please help support this email list: http://www.qsl.net/donate.html
> >
>
> ______________________________________________________________
> Lowfer mailing list
> Home: http://mailman.qth.net/mailman/listinfo/lowfer
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Lowfer at mailman.qth.net
> Post must be less than 50KB total for message plus attachment!
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>