[Amps] Regulated DC heater

[Dave]

You took the words from my mouth......but a good question to put in the ham exam question pool don't you think?
Cheers
Dave G0OIL / K2MOO

-----Original Message-----
From: d.cutter at ntlworld.com
Sent: 26 January 2009 18:18
To: amps at contesting.com; Missouri Guy <n0tt1 at juno.com>
Subject: Re: [Amps] Regulated DC heater

Charlie

It is convention to quote ALL voltages in rms values unless otherwise stated.  Therefore, 5V ac has the same heating effect as 5V dc.

David
G3UNA

---- Missouri Guy <n0tt1 at juno.com> wrote: 
> 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
_______________________________________________
Amps mailing list
Amps at contesting.com
http://lists.contesting.com/mailman/listinfo/amps