[Premium-Rx] heat sink thoughts and bucking xfmrs

[Paul Wende]

Hi John,

Thanks for the heads up on switchers. I didn't know that. The 2050 happens
to be a good ol' fashioned linear with about 10-15 volts accross each pass
device. WAY too much for home use with solid 115VAC input. I could use a
variac but hate to tie up the variac when I could put in a little helper
inside the radio.

Have a great weekend.

Paul
VE7KHz

>-----Original Message-----
>From: premium-rx-bounces at ml.skirrow.org
>[mailto:premium-rx-bounces at ml.skirrow.org]On Behalf Of John Perlick
>Sent: April 16, 2003 9:39 PM
>To: pwende at arrow.com; 'Premium-Rx (E-mail)'
>Subject: Re: [Premium-Rx] My assistant and heat sink thoughts
>
>
>oh, be carefull with bucking transformers, guys!  Running a
>power supply at
>a lower voltage can actully increase it's power dissipation!
>It depends on
>the type of power supply, but in the case of switchers, low
>line can be the
>worst case.
>