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Re: [Xylo-SDR] RFC - Powers
Looks quite useful to get started and experiment.
At 07:35 PM 1/15/2006, you wrote:
Well for external, and for experimentation I was thinking something like
this. Ya can?t beat the price.
I?m Googling an internal equivalent.
mailto:email@example.com] On Behalf Of
Sent: Sunday, January 15, 2006 7:36 PM
To: Xylo-SDR Discussion
Subject: Re: [Xylo-SDR] RFC - Powers
Sorry I didn't address inside/outside for the power source. If the power
requirements are modest, then an internal power supply is desirable from
a wiring point. A small switcher specially when fed by +13.8V, with
plenty of noise reducing techniques could live inside the box without
Also if the power requirements are modest then there is a second
alternative, I have several wall warts that put out +5 volts at 5A, +-12
at 1.5A. These came from equipment that was trashed at work, so something
similar should be available. This has the advantage of removing a source
of electrical noise from the box, and a source of heat that can make the
oscillators drift, while keeping it to one power cord into the
If you desire to have a HF amplifier in the box of modest power, there is
little choice but to have an external power supply, the box is too small
to handle a lot of heat.
At 04:03 PM 1/15/2006, you wrote:
"I fail to see why doing the same thing over and over and
getting the same results every time is insanity: I've almost proved it
isn't; only a few more tests now and I'm sure results will differ this
time ... "