...definitely NO!
Remember: by definition the RMS voltage is already equal to the DC voltage
that does the same work. That means 5V RMS is equal to 5VDC!
The RMS value of a 7 Volt peak source would be equal to 5V RMS/
Alex 4Z5KS
"Jesus, come get your kids, they're tearing up my Mother's backyard!"
-----Original Message-----
From: amps-bounces@contesting.com [mailto:amps-bounces@contesting.com] On
Behalf Of Missouri Guy
Sent: Monday, January 26, 2009 6:10 PM
To: amps@contesting.com
Subject: Re: [Amps] Regulated DC heater
Hi Gents,
Just for some future info here....If I use regulated DC to power
the filaments on any tube, and let's say the required voltage is
5 volts AC, shouldn't (or couldn't) the
DC value be 5 x .707= ~3.54 VDC?
Thanks,
Charlie, N0TT
On Sun, 25 Jan 2009 06:29:11 +0800 "Hsu" <hsu4qro@gmail.com> writes:
> use special transformer(CVT)
> 73!Hsu
> ----- Original Message -----
> From: "Mark K5AM" <k5am@zianet.com>
> To: <amps@contesting.com>
> Sent: Sunday, January 25, 2009 1:30 AM
> Subject: [Amps] Regulated DC heater
>
>
> >
> > Gary ZL2IFB wrote: I'm contemplating how best to
> > regulate the filament voltages on my amps, and
> > curious as to whether it's possible to
> > use a regulated DC supply . . .
> >
> > - - - - - - - - - - - - - -
> >
> > I have been using regulated DC on a 4CX1000A
> > heater for 14 years, with no problems. Circuit
> > details are in the two articles listed under
> > "Amplifiers 144 MHz" at
> > www.zianet.com/k5am/publ.html
> >
> > 73,
> >
> > Mark, K5AM
> >
> >
> > _______________________________________________
> > Amps mailing list
> > Amps@contesting.com
> > http://lists.contesting.com/mailman/listinfo/amps
> _______________________________________________
> Amps mailing list
> Amps@contesting.com
> http://lists.contesting.com/mailman/listinfo/amps
>
>
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