[Boatanchors] carbon resistor wattage ratings

[Dick KF4NS]

Point well taken Dave. Yes, there is an AC component here since it
follows the diode in a half wave rectifier.

Thanks to all for the enlightenment.
73, Dick KF4NS
St Petersburg, FL 33714 USA
Keep The Glow!

-------------------------Original message--------------------------
Message: 7
Date: Thu, 15 Feb 2007 12:27:50 +1300
From: "Dave Brown" <tractorb at ihug.co.nz>
Subject: Re: [Boatanchors] carbon resistor wattage ratings
To: <boatanchors at mailman.qth.net>
Message-ID: <02d901c7508f$be71c160$7900a8c0 at athlon1200>
Content-Type: text/plain; format=flowed; charset="Windows-1252";
 reply-type=response

While LLoyd may well be correct, I'm not sure how one measures
'defectiveness' in a finger! Instead try measuring the actual voltage
across the resistor when in circuit-and check its resistance again.
Do these number stack up? And we are talking DC here? -or is there an
AC component as well that your measurements/calculations may not be
taking into account?   e.g. incompletely filtered rectifier output
voltage, etc.  50 centigrade may be fine anyway, resistors are made to
get hot-it's all a matter of degree (no pun intended!)
 73 Dave, ZL3FJ