[Amps] Regulated DC heater

[Missouri Guy]

D'Oh!  You're right Bob...RMS=DC "heating" value...Shoulda
thought about it some more before posting.

Thanks,
Charlie

On Mon, 26 Jan 2009 08:53:37 -0800 (PST) Robert Groh <rgroh at swbell.net>
writes:
I don't think so, Charlie.  The filament AC voltage given by the
manufacturer's is the 'AC RMS' value and hence is (given no distortion in
the AC waveform) identical to the DC value. Bottom line: the two values
should be the same.

73
Bob, WA2CKY





From: Missouri Guy <n0tt1 at juno.com>
To: amps at contesting.com
Sent: Monday, January 26, 2009 10:09:38 AM
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